Author Topic: OK Ive finally figured it out (gun shooting badly)  (Read 2248 times)

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OK Ive finally figured it out (gun shooting badly)
« on: March 25, 2007, 12:23:11 PM »
So I'm sure as most of you who have been around for awhile I was plagued by an extremely difficult shooting rifle. It never shot consistent/accurate for me. Well I have discovered the problem...
I decided to see if the barrel needed tighting to the pivot point. So I removed the stock and took the barrel off, everything seemed fine. UNTIL I decided to check the rifling, and what a surprise. I took a few pellets and ran them through the barrel. About 1 inch of resistance and then it fell out... odd I must say. try ed another one and another all the same issue. I've try ed every single pellet I have including some jsb's that have larger head sizes. Push it out and only half of it has rifling and if you looked through the barrel it wasn't even fitting into the lands not to mention the grooves.


All in all I have discovered he cause of my woes, and all along I thought it was me and figured I wasn't cutout for springers. Now I have a dilemma on my hands as what to do. I tuned my rifle. new spring, top hat and guide, also de burred and added a cdt trigger. I wonder if gamo can just send me a new barrel? or maybe pick up a pivot block and barrel from another gun and see if it will work.


End of rant,

Jason


Im just glad my ar2078 will be here this week :) I love these airguns

Offline Rixtrix

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RE: OK Ive finally figured it out (gun shooting badly)
« Reply #1 on: March 25, 2007, 12:34:04 PM »
Too bad! Might want to check with Peterdragin or CDT to see if they have something to replace your bad part. Gamo cust service is unworldly slow, plus you voided your warranty by disassembling your piece( so I've heard). This is why people by more expensive guns, but it's more fun and cheaper to make these shoot just as good, or better. Good luck whatever uyou decide.

Ric G
Daisy Model 25 BB gun, 45 years young and still shooting-    BSA Ultra .177, RFM Muzzlebrake, Bushnell Elite 4200 6x24-40 AO Mildot scope,  SportsMatch high rings)-    Gamo Shadow 1000, GRT-lll trigger, AirGunToyz Muzzle Brake, Centerpoint 4-16x40 AO IR mildot,Accushot Med. One Piece Mount, JM Tarantula spring and seal, polished internals, sleeved guide and tophat,self-tuned with CDT advice, CPL, JSB Exact or Predator pellets

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #2 on: March 25, 2007, 01:00:03 PM »
Thanks, that was one of hte things I was hoping for. Jsut a decent replacement. And I figured gamo wouldnt take it on a warrenty (been there with computer stuff, you overclock it voided).

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #3 on: March 25, 2007, 02:00:07 PM »
You know I was thinking, are all the barrels like this? I ran a round down my old chinese rifle and it was almost the same (could see some light)...

Offline Big_Bill

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #4 on: March 25, 2007, 05:19:49 PM »
Hay Jason,

I don't know that this is your problem, I believe that the pellet needs the shot of air to inflate the pellet skirt, forcing the pellit skirt out, and into the rifling. Now I do not know as much as the others here, but I sure one of our more experienced members will come to your aid.

Good luck,

Bill
Life Member of The United States of America
Life Member of the National Rifle Association
Member Air Guns Addicted Anonymous
SHOOT SAFE ! - SHOOT WELL ! - SHOOT OFTEN !
Always Use A Spring Compressor ! and Buy the GREAT GRT-III & CBR Triggers, cause they are GRRRREAT !

Offline Gene_SC

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #5 on: March 25, 2007, 11:24:15 PM »
I have quite a few Gamo's and have never come accross that problem.. But maybe I am just lucky.. hehe

Gene
THE ONES I SLEEP WITH: BSA Lightning XL, AA TX-200, AA ProSport, BSA Ultra, HW-97K, Crosman NPSS .177, FX Cyclone, HW-30 Nicle Plated, AA-S200, Crosman Marauder, CZ-634, R-9 DG, Webley/Scott UK Tomahawk, Benji Kantana, Benji Marauder, Benji Discovery.....
....

Gene\'s Tunz n Toyz
Springer Tunin

Offline Gene_SC

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #6 on: March 25, 2007, 11:30:10 PM »
Bill, during my short time with air guns, the norm to checking the rifling on the air guns is by pushing a pellet through the barrel...:) You can tell real quick if you have a bad one right away..

I know that on one of the .177 L/W choked barrels that Rich sold me, you could hardley get the pellet through the barrel.. In fact the S1K that I put it in was shooting in the high 800's low 900's fps but after the barrel change I was lucky to get 400 fps.. And when I checked the rifling out by pushing a pellet through the barrel, it left rifling marks on the skirt of the pellet as well...

Gene
THE ONES I SLEEP WITH: BSA Lightning XL, AA TX-200, AA ProSport, BSA Ultra, HW-97K, Crosman NPSS .177, FX Cyclone, HW-30 Nicle Plated, AA-S200, Crosman Marauder, CZ-634, R-9 DG, Webley/Scott UK Tomahawk, Benji Kantana, Benji Marauder, Benji Discovery.....
....

Gene\'s Tunz n Toyz
Springer Tunin

Offline Rixtrix

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #7 on: March 26, 2007, 02:40:26 AM »

My S1K is fairly snug all the way thru, FWIW

Ric G
Daisy Model 25 BB gun, 45 years young and still shooting-    BSA Ultra .177, RFM Muzzlebrake, Bushnell Elite 4200 6x24-40 AO Mildot scope,  SportsMatch high rings)-    Gamo Shadow 1000, GRT-lll trigger, AirGunToyz Muzzle Brake, Centerpoint 4-16x40 AO IR mildot,Accushot Med. One Piece Mount, JM Tarantula spring and seal, polished internals, sleeved guide and tophat,self-tuned with CDT advice, CPL, JSB Exact or Predator pellets

Offline Big_Bill

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #8 on: March 26, 2007, 03:28:56 AM »
Thanks Gene,

With all your help, I'll learn, I promise .

Data entered !

Thanks,

Bill
Life Member of The United States of America
Life Member of the National Rifle Association
Member Air Guns Addicted Anonymous
SHOOT SAFE ! - SHOOT WELL ! - SHOOT OFTEN !
Always Use A Spring Compressor ! and Buy the GREAT GRT-III & CBR Triggers, cause they are GRRRREAT !

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Re: OK Ive finally figured it out (gun shooting badly)
« Reply #9 on: March 26, 2007, 04:28:13 AM »
Thanks guys. I seen after inspecting a few pellets that after it was pushed through it was missing a few grooves of rifling. I am beginning to wonder if this is really the problem. Even before I replaced the spring. The gun was very difficult to get any kind of group out of it.

Anyone know where I can get a piviot block and barrel from say a shadow 1000?