- Before I buy a CFX .22....

General Discussion To Gateway To Airguns => Gamo Gate => : davee1 August 23, 2007, 04:18:06 PM

: Before I buy a CFX .22....
: davee1 August 23, 2007, 04:18:06 PM

I wanna know what kind of ballpark velocity I'll be seeing with...say Crosman Premier .22 14.3gr. or whatever youv'e got chrony #s for just want to get a feel for the velocity in .22.

Is there anyone out there who can help this ol boy ready to push the order button at Pyramid???

: Re: Before I buy a CFX .22....
: August 23, 2007, 04:26:21 PM

I just looked through some past posts.. mid 700's and one guy got 726 with superdomes. Thats about 16 fpe..

: the button has been pushed on the CFX .22
: davee1 August 23, 2007, 04:54:41 PM

hehe...order button pushed. Finger worked independantly of the brain. Brain said wait, finger said no...now. And then my finger pushed the button!!! There's no control over what the order finger does!!!

Justification to wifegirl will be, if needed, "I gotta get one now. They are no longer available anywhere else, and once they are gone from Pyramid then they are gone for good. We have to act immediately". (we being myself and my order finger...two seperate entities)

: Re: Before I buy a CFX .22....
: August 23, 2007, 05:00:46 PM

Thats great !! :) you will love that gun. now head over to charlie da tuna's page and slap the order for a trigger. Seeing as you just spent $200 whats another $30?? Be the best 30 you have ever spent!!

Also ive heard superdomes and predators shoot well out fo that gun. So maybe shop around and stock up.

: Re: Before I buy a CFX .22....
: davee1 August 23, 2007, 05:53:25 PM

Oh yeah, thats right...I have to get a trigger for my new CFX .22 and S1K .177 thanks for the reminder...I'm gonna do that right now before I'm drawn away by some cockamamie breech seal idea er sumthin.

: done...2 GRT triggers have been ordered
: davee1 August 23, 2007, 06:00:08 PM

My finger pushed the button again!!! Twice!!!

: Re: Before I buy a CFX .22....
: August 23, 2007, 06:05:23 PM

HA.. Its an uncontrolable urge to spend spend spend. I have to admit I love getting new toys. But I have been controlling myself for the past few months. Make shure you post some pictures, reviews and kills with the new rifle!

: Re: Before I buy a CFX .22....
: August 24, 2007, 01:50:42 AM

I'm trying out my new CFX .22 and getting 1/4" penetration of 1/2" plywood at 60 feet with superdomes. Would that be about 700 fps or thereabouts?

: Re: Before I buy a CFX .22....
: August 24, 2007, 02:30:30 AM

Im not shure what fps that is. What kind of plywood? construction lumber, pine, cdx?

: Re: Before I buy a CFX .22....
: August 24, 2007, 03:22:03 AM

I don't believe it's pine, but it's probably from Home Depot. My gun is from Pyramidair, and it is obviously a CFX that was returned by someone else---some kind of coarse hair (dog, horse??) on the gun, a coffee ring on the scope manual, and the scope had been mounted (sticky residue from the scope rings on the scope). I was a bit concerned about getting someone else's return because of PA's very liberal return policy, and I specifically requested a factory fresh unopened box. So much for that... This is my first springer, so if the gun is defective I might not pick up on it until sometime down the road. Any suggestions as to what I might look for in the way of possible problems from you knowledgeable folks on this forums? I'd hate to have to go to the trouble of returning the gun if there's nothing really wrong with it.

: Re: Before I buy a CFX .22....
: August 24, 2007, 03:39:36 AM

Well inorder to diagnose a problem something to look for is dieseling, and velocity variations. You can get a real nice F1 chrony for around $70.. Well worth it.

: Re: Before I buy a CFX .22....
: August 24, 2007, 02:17:37 PM

Doug, unless I misunderstood, if you paid the cost for a new-in-box .22 CFX from PyramydAir, and they sent a return/refurb to you, you might want to touch base with them by phone and get it straightened out before too long. It's always possible that something got mixed up in their shipping dept. and if they did screw up, you'd want them to replace it with an un-used CFX while the .22's are still available.

Sound like a good idea?

Bryan

: RE: Before I buy a CFX .22....
: September 13, 2007, 07:34:15 PM

I have a CFX .22, also ordered from Pyramyd Air, and here are the muzzle velocities my Chrony showed that I am getting with it:

Daisy Precision Max Flat Nose - 666fps
JSB Exact Jumbo - 767fps
JSB Predator Polymer Tip - 756fps
RWS Super H-Point - 740fps
RWS Superdome - 663fps
Beeman Ram Jet - 735fps
Beeman Crow-Magnum - 720fps
Beeman Field Target Special - 662fps
H&N Baracuda Match - 704fps

My go to pellets for it are the Superdomes, Exacts, and Ram Jets, but all of these pellets (save the crappy Daisys) shoot well under an inch at 25 yards.
It also absolutely decks targets, significantly harder than its .177 CFX twin, also ordered from PA.
I also installed GRT-III triggers on both of them, and it is a MASSIVE improvement.
It makes them feel like custom target rifles, and the installation was so easy that I honestly believed that I had forgotten something, but the Word document Bob made up comes with excellent written instructions and high quality photos that told me that I had done everything right.
Unbelievable how a little trigger can so dramatically improve the shootability of an already excellent air rifle.

: Is your gun dieselling?
: vinceb September 15, 2007, 02:47:38 PM

If'n my figures are correct, your gun is delivering between about 14 and 23 ft-lbs of energy, depending on the pellet. It also seems odd that it shoots the FTS so much slower than the much heavier Crow-Magnums.

: RE: Is your gun dieselling?
: davee1 September 15, 2007, 03:12:06 PM

Vince, are you thinkin most of the pelletsshould be going faster or slower? I can chrony a few of my pellets as I have a CFX .22 I'll post those velocities in a little while.

RWS Hobby 750fps

RWS Superdome 630fps

Is this good, or bad? I thought that I would get like 800 out of it but no way. There is no visible smoke coming from it and it has quite a twang to it.

My Hammerli Storm .22 is blowin out RWS hobbies at 783 and superdomes at 710fps. I'm kinda disappointed in the performance of my CFX. I paid 220 bucks for it and 133 for the Storm. I don't get it...I love my Storm, it is my go to close range hunter. But the CFX? I'm looking at it and thinking, I should have never even bought it.

: Re: Before I buy a CFX .22....
: r1derbike September 15, 2007, 04:00:03 PM

Hmmm...gotta chrony comin' this way, will fps my .22 cfx and .177 cfx. Maybe everyone with a cfx .22 should post their chrony results with different pellets here too?

I installed an BSA laser/flashlight combo to the scope on the .22 CFX, and I gotta say, that thing is more fun than I had anticipated! The flashlight is quite weak. The gun is only accurate at the distance the laser was sighted, but I'm having more fun at night than I've ever had with my clothes on...

Charles

: Re: Before I buy a CFX .22....
: davee1 September 15, 2007, 04:08:27 PM

Absolutely...post your chrony numbers here for your CFX .22. That was my original intention when I started the thread, but I couldn't get much immediate response to give me a good idea of what to expect, so I ordered it anyway. Now I kinda wish I didn't get the CFX. Unless someone can tell me that my numbers are pretty low, then I might open her up and see whats goin on....I've got springs and seals.

: Some yes, some no...
: vinceb September 16, 2007, 12:08:48 AM

This is a correlation of published weight and the velocity he's getting:

Daisy   14.3   666
SuperH   14.2   740
Superdome   14.3   663
Predator   16.5   756
JSB Exact   15.8   767
RamJet   14.8   735
CrowMag   18.2   720
FTS   14.6   662
Baracuda   21.14   704

His Daisy, Superdome, and FTS velocities look about right. His SuperH and RamJet readings look iffy, and his Predator, JSB, CrowMag, and Baracuda readings look awful high - over 20 ft-lbs.

The CFX has the same basic powerplant as the other 1000fps Gamo's, except that it has 2 seals instead of one and a longer transfer port. It seems to me, anyway, that it is unlikely that the gun would perform any better than, say, a Shadow or a 440.

: RE: Before I buy a CFX .22....
: PeakChick September 16, 2007, 01:41:37 AM

Scott, your experience with your CFXs sounds pretty much like mine. Both of mine are very accurate, very easy to shoot, both became brilliant with GRT-III triggers installed.

With regard to everyones concern for chrony numbers:

I can't offer chrony numbers on mine, don't own a chrony. What I do know is that both my CFXs are brilliantly accurate with BSA Wolverines, 8.4gr in .177, 16.0gr in .22. Neither rifle has ever failed to take down game with one shot.

I have been shooting, primarily powder burners, for over 37 years (oooh, really dating myself) and have never owned a chrony. I've never felt I needed one, would rather buy a new rifle, scope, etc. I have always approached developing a pet load for a gun the old fashioned way........ Look at the available data, start with a range of components that should work well and work up to the one that was most accurate and did the job down range for me that I expected of it.

When I get a new air rifle I go at it the same way, basic prep on the rifle, cleaning, scope mounting, locktiting the screws, etc. Then I sit down with a large sampling of pellets and find the one that the rifle and I like best. Then I just shoot, virtually everyday.

The point I am getting to is that chronograph numbers are great, good data, fun to compare, but they are not the be all, end all of shooting performance. If a .22 air rifle shoots 1" groups at 40 yds and knocks a squirrel flat with one shot everytime is "only" shooting at 665fps does that mean I should give up on it? Does that mean that I really need a 900fps super barn burner?

Don't get me wrong, I think a chrony can be a great tool, nice to know exactly how fast, how numerically consistent a gun is. It's a great diagnostic tool for a gun that won't shoot consistently no matter what you try, gives an indicator that there might be a mechanical problem that need to be addressed. But isn't real world perfomance what really counts? Accuracy and down range performance?

: RE: Before I buy a CFX .22....
: longislandhunter September 16, 2007, 02:32:51 AM

Very well said Stephanie,,,, what matters in the end is whether the rifle adequately performs the function you are using it for. In my case all my air rifles are used for one purpose,, that being small game hunting. I do target shoot some, but my main focus is hunting, and a dead squirrel is a dead squirrel whether the pellet hit him at 750 FPS or 650 FPS.

Jeff

: Good point, Stephanie...
: daved September 16, 2007, 02:46:11 AM

I think a lot of us get caught up in the numbers game, I'm sure more than a few have had go to, never miss guns they loved, until they got a chrony. Suddenly, that wonder gun is a weak sister, and they're trying to figure out how to get another 100 fps out of it :-).

That said, the chronograph is an integral part of our little game here, and for some, i.e. Talon shooters like me, they're just about required for getting these things dialed in. Springers not so much, although I had an issue with my first CFX, wildly varying velocities, that took a chrony to zero in on. All I knew for sure without the chrony was that my accuracy sucked! Besides, at the risk of sounding somewhat chauvinistic, it's also at least partly a guy thing, somehow we just can't resist measuring and comparing :-)!

Back in the day, I used to hand load magnum handguns. That was when having a Weatherby really meant something, and unless you could afford a Weatherby, you couldn't afford a chrony. But for what they go for now, I feel they are an important part of a shooters tool kit, especially when used properly. Properly would go something like this, in my opinion:

New gun, routine out of box maintenance, as you described.
Break it in, 500-2000 pellets, depending on gun. Don't worry much about accuracy or best pellet yet, just shoot it.
After break in, determine typical range and target, then find 2 or 3 most accurate pellets.
NOW do your chrony testing, both to establish a base line, and to determine which of your accurate pellets gives the best power FOR YOUR PURPOSE, bearing in mind that best power may not be most power. The flip side being, most power may not be most accurate, but it might still be accurate enough. That was the case with my old .177 CFX, most accurate was JSB Exact 4.52, but Superdomes were almost as good, and delivered about 2 fpe more. Superdomes were and still are the best all around pellet in that gun.

Like I said, this is my opinion of how it SHOULD be done, but that doesn't mean that's how I'm doing it :-). Forgive my long windedness (quiet, Dan!), I'm sure most of this is obvious, but maybe it'll give the newbs a starting point that helps avoid some frustration or even buyers remorse. The most important point you made is to just shoot. NOTHING takes the place of practice, which builds confidence in your own abilities, and familiarity with the guns capabilities. I finally got out of springers because I never developed any confidence in my HW 77, which killed my self conficence. Went from 5 springers to 1 PCP, and I don't think I'll be going back. Too much work and not enough power :-)! And no, I don't know how much is enough, but I'm working on it. Later.

Dave

: RE: Before I buy a CFX .22....
: davee1 September 16, 2007, 02:57:23 AM

PeakChick, points well taken...I'm with you on the chrony not being the endall decider so to speak. Of course one should look at what pellets work well, what the gun feels like, how it shoots, can it be easily improved like with a GRTIII. Of course I want an accurate airgun. I guess its easy to give the impression that is what I'm always looking for...for example, "hey everybody what kinda numbers are you seeing coming out of your CFX". In my case, I have 2 initial criteria that I look for in purchasing an airgun...long range and shortrange performance. Now I know that if a group of folks chime in and say "oh man, I'm getting 900fps with CPH .22 pellets" well thats gonna most likely be a good long range rifle. But I hear that most folks are getting 600~750, which puts the CFX in the shortrange category(for me), which is further verified when I get the CFX .22 and try it for myself. I can't use the CFX for long distance shots. 50 yard shots are a stretch, while 30yrd shots are highly accurate, especially when using the scope that came with it. Can't use the open sights though, but thats another story.

What really ticks me off is when I find out that some of my other .22 airguns are more powerful and just as accurate, or at least closely accurate(good enough for pest control), and I've paid a whole lot less for them. Case in point...my Storm. Paid $133 for it and it reaches out much farther than my CFX, and even though it may have a weird trigger, I can still hit what I'm aiming at, with open sights or a BSA red dot. Another one, my B3AK47 .22, which I paid $57. This little guy packs a wallop at short range and isthe most accurate .22 airgun I have at short range, with open sights. So now I have a CFX .22 and I'm going to open up a new class of airguns in my collection called "intermediate range". It's inbetween short and long range.

So I just looked back at what I have written and it seems that I have ranted somewhat. Getting back to my initial point...the chrony numbers requests that I'm throwing out there help me decide what range the the gun will be used for. And as you have pointed out, the chrony should give folks an idea of performance dropoff/increase. Its really thrilling to chrony an accurategun, modify the gun, chrony it again, and find out that you just increased your velocity, and accuracy is still there. A chrony is a great tool to have.

: Well....
: vinceb September 16, 2007, 03:10:31 AM

It should be possible to get a CFX close to the Storm's velocity... my old B19 (with a very similar powerplant) was almost a match for the Storm I sold.

Perhaps a good work-over of the powerplant - and possibly replacing the breach seals - will get you closer to where you want to be, without sacrificing the CFX's virtues.

: RE: Well....
: davee1 September 16, 2007, 03:15:25 AM

But are the breech seals available? And I was thinking that a E2000 or Tarantula spring may increase performance a little.

: Scott....
: davee1 September 16, 2007, 03:32:12 AM

Scott, would you be willing just to test your Barracudas over again? They are the heaviest pellet of the bunch. I'm getting 550fps with Kodiaks, which are the same as barracudas.

: I may not have said it before....but
: davee1 September 16, 2007, 04:41:01 AM

All opinions are welcome here. You can post your numbers or talk about whatever you want here. Thats part of what makes GTA a great place to be. We can discuss things without being rude to each other. Thats a whole lot better than what I've experienced in other forums. Thats why I choose this place.

Please folks, keep it comin.

: Chronograph helps determine specific barrel / pellet match
: 3n00n September 16, 2007, 04:52:20 AM

Example would bethe Diana 52 that shot crowmags at 760 and cp at 790, but when the 'old supply' crowmags ran out the 'new supply' shot atmuch different poi and were more difficult to push into the barrel. Chrony says 'new supply' crowmags are shooting about 670, and even thoughgroups are still good, spring damage seems more likely so cp it is {unlessnew batches go south too}

Another example is match rifles, because 575 is the magic # for 10m wadcutters according toGerman information, the best accuracy closest to 575 should bebest 'match use' pellets for repeatability. Though there is no current threat of j shooting a match in an olympic venue, anyassistance makes for better groups . . . {well, if it is an 'on' day anyway(http://www.getphpbb.com/phpbb/images/smiles/a_content.gif)}

: RE: Chronograph helps determine specific barrel / pellet match
: davee1 September 16, 2007, 06:19:04 AM

Yes, I think these are excellent examples of why we like chronys!!! I like to measure the out of the box performance of my airguns and then "compare to now" type endeavors. It keeps me off the streets. I spend money, but not on the streets.

I would be really bummed if I didn't have my chrony...I guess its one of those things like you don't really know what you are missing until you have one...:)

: Yes... in the library, there's a section...
: vinceb September 16, 2007, 12:48:24 PM

...on the Gamo rotary breach. There's 2 "O" rings, and they are apparently standard sizes.

As for the spring, there's a couple of options. The Macarri springs are usually considered to be the best, but you need new guides to make them work properly. Some shooters have also reported good performance and reliability out of the Crosman Quest spring and tophat.

In any event, 630 with Superdomes does strike me as a bit weak. I'm wondering if your breach seals are leaking (I know mine are!), if your main seal is damaged, or if your spring is short.

: Re: Before I buy a CFX .22....
: r1derbike September 16, 2007, 01:30:24 PM

I must have a chrony! Add a barrel full of rednecks, and you've got a party! Max velocity measurements on lots-o-stuff! Spitting watermelon seeds. Hocking loogeys. Firing beer bottle lids with just a snap of your thumb and middle finger (kind of a mini frisbee). Spattin' a big ol' wad-o-chaw! Throwing rocks! Dead squirrel toss! 170 pound pig toss, after takin' 'im down with one shot of PBA ammo in a Hunter Extreme (OK, that's pushing it). Man, I gotta get me one-o-dem!

The possiblities are endless!

Charles

: Re: Before I buy a CFX .22....
: PeakChick September 16, 2007, 01:34:17 PM

LMAO!!

: you have one comin, right? Mr. Bikemun?
: davee1 September 16, 2007, 02:04:30 PM

Oh great... I opened up a hole for any post now. :) You said previously in the thread that you have a chrony coming. So when and where is the party? You just wait...you'll see. When I got my chrony, I stayed up all night playing with it, the possibilities are endless, especially if you are a tekkie like me. Just remember to put some protection in front of it, so that when the PBA ammo goes wild, you won't have a hole in your chrony. And I'm thinkin Stephanie needs one too so she can measure stuff. Check out how fast your hand is...move it through both sensors and I bet you'll be suprised how slow your hands are and you cant make them much faster. Thats what I did when I ran out of guns, pellets, and situations to chrony...

: Vince...
: davee1 September 16, 2007, 02:23:25 PM

Thanks Vince for that reference...I had never seen that before. I read through it and there's something wrong...there must have been a change in the 2007 models because there is no way that the rotary is going anywhere to change the front seal. It looks to me like disassembly is the only way I can check everything. When you said that you wonder if my spring might be "short" did you mean that it could be broken? Or actually physically short in length? It has an awful twang to it. The first shot out of the box was a detonation, followed by smoky deiseling shots, and then finally she settled down to barely any smoke at all which is where she's at now. I got this beauty less than a month ago from Pyramid, which apparently is the only place that has the .22 version. Total shots through it is about 200. I havent been shooting it much, because...well...I'm kinda mad that I paid 220 bucks for it and its just not what I was expecting. Its a beautiful gun, cocking is smooth, but the power is really disappointing to me. I'm starting to get that sick feeling like I did when I got my Hammerli X2.

: RE: Is your gun dieselling?
: September 16, 2007, 02:42:48 PM

vinceb - 9/15/2007 10:47 PM

If'n my figures are correct, your gun is delivering between about 14 and 23 ft-lbs of energy, depending on the pellet. It also seems odd that it shoots the FTS so much slower than the much heavier Crow-Magnums.

Yeah, that is strange.
I have found similar anomalies with other airguns.
Even though the Crow Magnum is a rather heavy pellet, while the FTS is significantly lighter, the former is faster.
I am guessing that there is more at work than simple weight ratios, such as how tightly each respective pellet fits the bore, how efficiently a given pellet harnesses the spring piston, lubricity of each pellet, etc.
To further surprise you, my .22 CFX actually shoots two types of pellets FASTER than the .177 CFX versions of the same pellets.
JSB Exact (.177) - 754
JSB Exact (.22) - 767
Beeman Ram Jet (.177) - 713
Beeman Ram Jet (.22) - 735

Furthermore, it also shoots two other pellets so close to the .177 versions that it is probably overlapping and either the same or higher with the .22 again (I didn't go to the trouble to shoot several of each pellet, then average, I simply shot two or three to "wake up" my rifles, then shot one of each pellet over my Chrony).
JSB Predator Polymer Tip (.177) - 778
JSB Predator Polymer Tip (.22) - 756
Beeman Kodiak (.177) - 715
Beeman Kodiak (.22) - 704

From all this data, it seems that the .22 is considerably more efficient in utilizing the energy at its disposal.
Oh, accuracy-wise, the .22 loves JSB Exacts (1/2" @ 50 yards), while the .177 seems to have a three-way tie between Ram Jets, Exacts, and Superdomes, all of which drop inside 1/2" @ 50 yards.
However, they each have pellets they do not shoot well.
In the .177, those pellets are the Gamo Raptor (no surprise, supersonic instability, something on the order of 1-1/2") and the Beeman Silver Ace (terrible, hovers around 2").
The .22 throws Silver Arrows so poorly that I am guessing somewhere around 4-5"!
Great airguns, and not very hold sensitive at all.
In fact, their firing behavior and handling remind me more of a .22 rimfire than a spring piston airgun. 8)

: RE: Is your gun dieselling?
: September 16, 2007, 02:54:06 PM

davee1 - 9/15/2007 11:12 PM

Vince, are you thinkin most of the pelletsÂ should be going faster or slower?Â I can chrony a few of my pellets as I have a CFX .22Â I'll post those velocities in a little while.

RWS HobbyÂ Â Â Â Â Â Â Â 750fps

RWS SuperdomeÂ 630fpsÂ

Is this good, or bad?Â I thought that I would get like 800 out of it but no way.Â There is no visible smoke coming from it and it has quite a twang to it.

My Hammerli Storm .22 is blowin out RWS hobbies at 783 and superdomes at 710fps.Â I'm kinda disappointed in the performance of my CFX.Â I paid 220 bucks for it and 133 for the Storm.Â I don't get it...I love my Storm, it is my go to close range hunter.Â But the CFX?Â I'm looking at it and thinking, I should have never even bought it.Â

Â

Â

Actually, I think you are being unfair to your .22 CFX.
Remember that each pellet gun has its own preference in pellets, and that applies just as much to how fast it shoots a given pellet as well as to how accurate it is with said pellet.
FWIW, my .22 CFX shoots Superdomes at 663fps, so your results are statistically very close, especially considering that you are probably basing those figures on a brand new gun that has neither been tuned nor allowed to break in a bit, both of which practices usually yield slight increases in muzzle velocity and accuracy, and decreases in roughness and twanginess.
I have blown over 2,000 pellets out of my .177 CFX now, and it is smooth as glass, hardly buzzes when shot, and is so accurate with most of the pellets I have that it is a real task to measure groups, as it likes to stack each shot on top of the last.
The .22 CFX is shooting very well, too, even though it is newer and has only had something like 700 pellets blown out of it, so it is far from fully broken in just yet, so its greater vibration, roughness, and somewhat lesser accuracy should all improve in about another 1,000 shots.
However, I DO believe that the .22 will always have noticeably greater recoil, but that is a function of firing pellets that often weigh twice as much as their .177 counterparts, so Newton's theory comes into play here.
One thing is for certain: The .22 absolutely obliterates what I shoot with it, while the .177 usually sends pellets screaming through what I hit so quickly and with so much greater penetration that I hardly notice it. :o

: Scott...excellent info
: davee1 September 16, 2007, 02:56:33 PM

Scott this is good stuff!!! Very interesting and surprising. And based on the fact that your CFX .22 is shooting Kodiaks at 704 and mine is shooting them at 550...well that just makes me think that my CFX is defective. And now I *definately* am sick. There's been a couple of airgun purchases for me recently that have made me sick. I'm going to have to be more cautious.

: RE: Is your gun dieselling?
: davee1 September 16, 2007, 03:04:38 PM

Scott, there's no way that I'm being unfair to my CFX when yours is poppin Kodiaks out at 700 and mine is doing 550. There's something wrong there.

: Re: Before I buy a CFX .22....
: September 16, 2007, 03:04:47 PM

r1derbike - 9/16/2007 12:00 AM

Hmmm...gotta chrony comin' this way, will fps my .22 cfx and .177 cfx. Maybe everyone with a cfx .22 should post their chrony results with different pellets here too?
[...]Charles

As requested:

Gamo CFX .177 Muzzle Velocities:
Gamo Rocket - 735
Gamo Raptor - 1028
Gamo Magnum - 674
Gamo Tomahawk - 833
Crosman Premier HP - 806
Crosman Premier Ultra Match Flat Nose - 802
Crosman Premier Ultra Magnum - 710
Benjamin Round Nose (aka Crosman Premier RN) - 722
Beeman Coated HP - 852
Beeman Silver Ace - 738
Beeman Ram Jet - 713
Beeman Crow-Magnum - 754
Beeman Kodiak - 715
JSB Exact - 754
JSB Predator Polymer Tip - 778
RWS Super H-Point - 812
RWS Superdome - 753

Gamo CFX .22 Muzzle Velocities:
Beeman Ram Jet - 735
Beeman Crow-Magnum - 720
H&N Baracuda Match (aka Beeman Kodiak) - 704
JSB Exact - 767
JSB Predator Polymer Tip - 756
RWS Super H-Point - 740
RWS Superdome - 663
Beeman Field Target Special - 662
Daisy Precision Max Flat Nose - 666

And there you have it.

: RE: Is your gun dieselling?
: September 16, 2007, 03:10:56 PM

davee1 - 9/16/2007 11:04 PM

Scott, there's no way that I'm being unfair to my CFX when yours is poppin Kodiaks out at 700 and mine is doing 550.Â There's something wrong there.

Hmmm...didn't pay attention to that.
It seems strange that the Superdomes are so close, while the Kodiaks are so far apart.
Could be something about your particular lot of pellets?
It seems unlikely on the surface that the airgun itself is at fault, seeing how close the Superdomes are, but then I am no expert on these matters, preferring to allow my airguns to break in over time than toss another $150 or so to someone to tune them by hand.
:0

: RE: Is your gun dieselling?
: davee1 September 16, 2007, 03:20:58 PM

Are you thinkin that a break-in is gonna boost up the velocity on a 21 grain pellet by 150fps? Let me chrony those Kodiaks again to make sure that my eyes were right...

nope.. 4 shots 545~557

: RE: Scott....
: September 16, 2007, 03:25:17 PM

davee1 - 9/16/2007 11:32 AM

Scott, would you be willing just to test your Barracudas over again?Â They are the heaviest pellet of the bunch.Â I'm getting 550fps with Kodiaks, which are the same as barracudas.

Roger that.
When I get a chance tomorrow, I will Chrony Kodiaks out of each CFX.
btw...I have to say that all this angst over muzzle velocity is a little over the top.
If there really IS something wrong, call Pyramyd Air, and see if you can't talk to one of their techs.
Their support is excellent, and their return policy is outstanding.
They REALLY want their customers happy.

: RE: you have one comin, right? Mr. Bikemun?
: September 16, 2007, 03:31:40 PM

davee1 - 9/16/2007 10:04 PM

Oh great... I opened up a hole for any post now. :)Â Â You said previously in the thread that you have a chrony coming.Â So when and where is the party?Â You just wait...you'll see.Â When I got my chrony, I stayed up all night playing with it, the possibilities are endless, especially if you are a tekkie like me.Â Just remember to put some protection in front of it, so that when the PBA ammo goes wild[...]

Well, some people have actually taken out their F-1 Chrony at short range when they bobbled their Ruger Blackhawk .45 Colt, nuking it with a maximum charged 200 grain lead semi-wadcutter, necessitating a return to Shooting Chrony for a $50 repair.
Hmmm...I wonder who could possibly be so dumb?
:)

: RE: Scott....
: davee1 September 16, 2007, 03:34:33 PM

What do you mean...angst? I will call Pyramyd when the time is right, but first I would like to determine if there is indeed a problem by comparing numbers with the heaviest common pellet, which I see as the kodiak. I am often silly, and that sometimes is misunderstood.

: RE: you have one comin, right? Mr. Bikemun?
: davee1 September 16, 2007, 03:37:01 PM

exactly :-)

It happens...thats why Ive got a 4x4 block of wood protecting mine...

: RE: you have one comin, right? Mr. Bikemun?
: r1derbike September 16, 2007, 03:42:37 PM

davee1 - 9/16/2007 8:37 PM

exactly :-)

It happens...thats why Ive got a 4x4 block of wood protecting mine...

Reminds me...need to pickup some railroad ties. .50 Armalites do bad things to "stuff". :emoticon:

davee1:

I do have one coming from Cheaper Than Dirt. Should be here in a few days.

Charles

: Charles...
: davee1 September 16, 2007, 03:47:43 PM

Right on man...get that railroad tie in front of it and fire away. And then please post your numbers. Inquiring minds want to know....

Oh yeah and what about the party?

: RE: Charles...
: r1derbike September 16, 2007, 03:59:26 PM

Party will be held at location below. John is my brother. Check-out the upper and lower shooting range links. Be sure and click on the upper range links (blue highlighted text). Susan is my sister, Rick is my brother, and so on, and so on, and so on...

Charles

http://www.johndawson.org/shooting/shooting4fun.html :emoticon:

: after seeing the party location
: davee1 September 16, 2007, 04:13:53 PM

and the party favors...make that two railroad ties....:)

: Boy, I feel like a wuss....
: vinceb September 16, 2007, 10:59:36 PM

...since I only used a .22 B4-2 to take out MY chrony! But .45 at short range? Now THAT'S doin' it right....

: Actually, it could be either.
: vinceb September 16, 2007, 11:12:58 PM

I've seen Gamo springs get "crunched" from one or two (bad) diesel shots. Their free length shortens by about 1/2-3/4", reducing preload and causing a significant power loss.

Others have reported broken Gamo springs, although I've never had it happen to me. I did have one break in a B19 once, but not in a Quest, either.

As for the seals, I'd be a lot more concerned about the rear seal than the front one. Also, bear in mind that if you dismember the gun, Gamo will wash their hands of it!

At this point, you might be better off talking to both pyramyd and Gamo. It might help if you chronied it with Gamo pellets. Perhaps the factory will take care of the issue, but you need to talk to a rep directly, get his name, and include a letter with a summary of your conversation and the name of the guy you talked to.

: Re: Before I buy a CFX .22....
: September 17, 2007, 02:53:33 AM

I don't have a chronometer, but my new .22 CFX is shooting thru three empty soup cans lined up one behind the other at 100 feet. That's with superdomes. Seems to me that's plenty of power-700 to 725 fps maybe?
These zig-zaggy threads can be confusing. I meant to post this in the thread above this one (I think).

: RE: Boy, I feel like a wuss....
: September 17, 2007, 08:51:45 AM

vinceb - 9/17/2007 6:59 AM

...since I only used a .22 B4-2 to take out MY chrony! But .45 at short range? Now THAT'S doin' it right....

You have strange ideas on what is right!
Yeah, I did it in the winter, and my feet slid in the snow, and the slug slammed into the top edge of the display, knocking the entire thing down, and the tripod with it.
I was just glad that the slug didn't come right back at me, but the LCD screen was spiderwebbed, the housing for the electronics was hopelessly mangled, and (naturally) it didn't work at all.
I sent it back with a check for $50, and Shooting Chrony returned it within two weeks.
Great service, and I am using the same Chrony (purchased in 1988) to this day.
I have considered getting an Alpha Master, which has the cable to take the sensitive electronics and display out of harm's way, but I don't see the need, since I have learned my lesson to shoot from a stable rest when I break out the old F-1..
:emoticon:

: RE: Before I buy a CFX .22....
: September 17, 2007, 09:18:29 AM

Well, I'm not an air rifle hunter- yet, just having fun shooting at cans so far. I've had my .22 CFX for a few weeks and am able to shoot thru three tin cans lined up one behind the other at 100 ft, using superdomes. I've no idea what the fps reading would be, but it has enough punch for this can plinker. The rifle not only has chutzpah, but I've been whacking those cans with open sights wearing trifocals, so the gun is a straight-shooter too.
(this was originally posted to the wrong thread, and I don't see any way to delete it from there).

: RE: Scott....
: September 17, 2007, 10:29:11 AM

Okay, I just finished re-checking all of my velocities with BOTH the .177 and the .22 Gamo CFX airguns.
I only fired a couple of "wake up" shots to start with, then I took one reading with each pellet.
Okay, on with the numbers.

.22 Muzzle Velocities:
H&N Baracuda Match (aka Beeman Kodiak) - 521
Beeman Ram Jet - 592
Beeman Crow-Magnum - 555
Beeman Silver Arrow - 608
Beeman Field Target Special - 615
RWS Super H-Point - 640
RWS Superdome - 660
JSB Predator Polymer Tip - 626
JSB Exact - 566

.177 Muzzle Velocities:
Beeman Kodiak - 687
Beeman Ram Jet - 766
Beeman Crow-Magnum - 771
Beeman Silver Ace - 774
Beeman Coated Hollow Point - 802
Gamo Magnum - 817
Gamo Rocket - 723
Gamo Tomahawk - 732
RWS Super H-Point - 891
RWS Superdome - 796
JSB Predator Polymer Tip - 768
JSB Exact - 745
Crosman Premier Ultra Magnum - 641
Crosman Premier Hollow Point - 822

Obviously, there has been some variation from my original numbers, especially with the .22.
No longer does a given pellet in .22 outrun the same type in .177, and the Baracudas are coming out approximately at the same speed as the OP is getting.
In fact, I am getting about 30fps LESS than Davee1.
My apologies for having such out of whack numbers initially, causing you so much consternation.
I DID Chrony my .22 when it was brand new, so I suspect that I _DID_ have dieseling my numbers quite a lot.
Either way, I feel far from cheated with both of my Gamos.
In fact, I think they are a tremendous bargain.
To better them significantly, I would probably have to plunk down two or three times what I gave for them with a Beeman R1, HW97, Beeman RX-2, or Air Arms TX-2000.