CFX Shooting Low

Sighting in my CFX .22.  Shooting great groups but consistently low.  Couldn't hit target @ 35 yards, but ok @ 15 using GAMO Hunter, but still low  .  Do I need an adjustable mount? If so what fits the CFX 11mm Rail, 1" tube?

[daved]

Hey, Mario,

Did you optically center your scope first?  My new .22 CFX was shooting low at 30 yards, thought I might need to shim or get an adjustable mount, so I pulled the scope and centered it, then worked my way back out to 30 yards.  Seems okay.  If you do decide you need a different mount, I'd suggest the BKL .007 drooper mount.  I've used one before and it was almost perfect.  If you prefer, the Beeman adjustable is about the same price.  I tried one of those as well, you can dial it in to perfection, but I had windage screws that kept loosening up.  B-Square also makes adjustables, but I have no experience with them.  The other option is to shim your scope.  I've had good luck with this on 2 different rifles, a CFX and an RWS 350.  There's an excellent article in the Library.    HTH.

Dave

Dave,  I'll check center & try your method. Thanks for the help.

Mario

[Avox]

Not really clear by what you mean by optically centered. Mounted my scope and it does not seem to matter which way or how much I adjust, the POI is the same.

[daved]

Optically centered simply means that the windage and elevation adjustments are centered in their range.  Some try to "center" their scopes by counting clicks from one stop to the other, then dividing in half.  It's not very accurate, and you can actually damage your scope.  Check the library, I believe there are some good instructions for optically centering a scope.

All that aside, if you are getting no change in POI when adjusting your scope, you have a busted scope.  Maybe.  What kind of scope is it?  What kind of rifle is it on?  What mounts?  What range are you shooting at?  And how much have you adjusted the knobs, namely how many clicks or turns?  Most scopes have what are referred to as 1/4" clicks.  This means that it would take 4 clicks to move the POI 1" at 100 yards.  That's an approximation, some are 3, some are 5, but the average is 4.  This becomes a problem at short ranges, at 10 yards that same 1" adjustment will take 40 clicks.  Other things can aggravate the problem.  Some rifles have what's called barrel droop, these can use up all your adjustment and STILL not get on target.  RWS rifles are notorious for this.  The solution is either an adjustable  or drooper mount, or shimming the scope.  Again, there's good info in the library on scope shimming.  Post some details, maybe we can help you get it sorted out.  Later.

Dave

[Gene_SC]

Ya know Dave, I have not done very much in the way of technically setting up any of my scopes. I put them on and start a 15 to 20 yards and see were the pellets are hitting. I know it is not the right way to do it and maybe I could even get better groups if I did it by the book, but once I find that right adjustment and hit bulls consistantly at 20 yards, I then move target to 40 yards. Reajust and Waaaa Laaaaa... Only on a couple of occasion that a scope was way out. Then I started checking rings and mounts. Re-install mounts and scope to see if that helps... I have a bunch of scopes and only one was definetly bad. I just threw it away and bought another one and problem was corrected... Guess I should really go through the motions and do scope siting by the book but I am always to anxious to shoot.. Anyway between you and CDT, I have my method of sighting one in and thanks to you once again now know how to adjust the power settings.. Since that time we talked on the phone, I have just simply mount it, sight it in manually and set the power so it is not so sensetive and shoot till I run out of pellets.. lol

OH! and by the way.. I am getting that new Simmons Master Series Scope in tomorrow.. Can't wait..

Gene

[daved]

Truth be told, Gene, I do the same a lot of the time.  I've found that new scopes are actually really close out of the box, so I've gotten into the habit of just putting it on and shooting it.  Used scopes, like the 44 Mag I got awhile back, can be a different story.  It is a good way to zero in on problems.  My original CFX has a droopy barrel, by optically centering the scope, then starting at 10 FEET, I was able to verify it, and adjust it by shimming at the rear mount.  Of course, my 350 had the same problem, I used both a Beeman adjustable and a BKL drooper on that to fix the problem.  It's just one more tool in the box, don't need it all the time, but it sure can help when you do :-)!

Glad to hear that new Simmon is FINALLY coming in, I look forward to your review.  I'm waiting on a scope myself, finally sent that lousy Leapers compact in (AGAIN!) for warranty replacement.  If this one is as bad as the others have been, it goes in the trash along with my opinion of Leapers products.  Later.

Dave

[Avox]

Looked in the library before asking, if it's there I missed it. This thread is CFX shooting low. The gun is a CFX and the scope the 4X32 Gamo scope that came with it. Was shooting at about 20 yards, clicks were about 20 in one direction and and 12 past the start in the othe directionr. Just before I quite trying to adjust it I shot on a piece of cardboard noted the hole adjusted the scope in both elevation and windage 12 clicks each. The next shot touched the first shot to the left wit no change in elevation. Know what you mean about turning too many clicks damaging scope. A 3-12X44 BSA I have I was trying to adjust on a Shadow and adjusted too far up. It stopped clicking and no matter how far I turned it the other way it would not pick it up again. The AO was not working either out of the box so no suprise, it was a refurb. The Shadow has barrel droop which I confirmed later using a bubble level. When I went to put the scope on the CFX, first leveled the barrel and then checked the scope rail and found it was also level. I did not check to see if the rail was made with droop compensation since the lines of the barrel and rail appeared to be the same it did not matter. Well I'll relevel the gun and put a horizontal laser line on the wall and see if adjusting the scopes elevation will change the scopes horizontal line off of the laser line to confirm a broken scope.

[Avox]

Like I mentioned putting a level laser line on a far wall and adjusting the elevation showed it was still adjusting to the right. Then I put another vertical line up and checked the windage adjustment, it was also stil adjusting. After adjusting both to lines to the far right and down checked them for adjusting in the other direct and returned them to their extreme. Then it was time to shoot it and see where the pellets were landing. Shot at the upper left target of a six target sheet and completely missed the sheet. Thought maybe a flier and never adjust for one shot so I shot two more times and missed with both. Then decided to shoot the right middle and still missed the sheet. Walked up to the target and found one hole just above the sheet in the middle, Yipee! Shot the lower right target until the shots started falling into the circle consistently and lost track of which hole was which shot. Then I shot the middle left target and the first shot went through the quarter inch black dot in the middle of the half inch red dot.  Thought wow gotta be a fluke and took two more shots one hitting to the left and the other to the right of center line by a half inch each. Adjusted a little at a time until the shots were hitting a quarter or third of an inch above the red dot. Was shooting Beeman laser pellets and thought it was time to try something heavier. So I shot a few Wolverines, Predators and Crow mags with the Crow Mags hitting as far below as the Lasers were hitting high. The other two were hitting in the middle. Shot about another ten shots with the same pellet to make sure the scope was not shifting internally. All of the previous shots were sitting down with elbows on knees. Then I took three quick shots standing, it was getting dark, shooting downward which fell left right and below about a half inch. Think I could do better taking my time. That was all done at forty feet. Going out to even 25 yards I,ll need more scope with my eyes to achieve a kill zone less than an inch.

BTW For those interested.  Found some excellent instructions for Centering a Scope in the ChairGun2 help files.

[brokenarrowjbe]

I think you can sight in a scope by setting up a target at about 10 feet then shooting to about 3" below the point of aim. It is easier than walking and it can be done on the front porch it should be pretty close fron 10 to 15 yards out to about 35 or 40 w/some fine tuning. My problem was scope creep, now using gamo single mount with scope stop, works wonders, hope this helps, John