Gamo Bone Collector Bull Whisper gone crazy!!!

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Hummer57

Hummer57

Member
Aug 12, 2020
443
7
Idaho, United States
My wife’s Gamo .177 has lost it. As of a week ago it was shooting quarter size groups at 25 yrds. I grabbed it on a couple of occasions during the week when I heard a squirrel in the back yard and missed both at 20 yards. This weekend I put it on the bench and it was spraying pellets 4” low and left. Relighted the scope, got it to 2” for a few shots then it started shooting way low again. Ran out of elevation on the scope. Mounted two more different scopes, same thing. Any suggestion welcomed! The gun is 3 years old.

Also, any suggestions for a new break barrel gun for her, $300 range?
 
My gamo swarm magnum is terrible. Every different brand of pellet goes somewhere different, the scope that came with it could not zero without serious shims. Pellets clip on the ldc and shattered the baffles. Half the pellets I shoot "keyhole" targets because they are coming in at weird angles. It's like you can only shoot one kind of pellet with that thing. Just a terrible gun I think.
 
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Well my 2 tuned gamos all can do .25 5 shot groups on a good day at 20 yards..... pretty sure my other new one can too but have only taken It out once, none are magnums though, it’s pretty common knowledge that a magnum springer will be harder to shoot accurately. Mike ellingsworth was nailing a bucket at 60 yards in one of his videos about the gamo magnum...

Now some questions....

1) are the groups still tight but just low and to the left?

2) you for sure mounted 2 different scopes and both of them run out of elevation and you’re still shooting low? If so what scopes are these and do we have proof they’re solid?

My suggestion is pick up an older gamo and tune it. A hunter model, a Varmint, etc. i say that because I have fun working on things. They’re accurate in general for the lower cost and with a bit of care they become pretty darned accurate. Otherwise everyone and their mother’s neighbors friend on here will say HW30 for mild sauce and a HW95 for spicy. 
 
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Not really shooting that airgun much but fixing it might make a good project some day. The idea of starting a thread for help on it hadn't occurred to me... thanks for the suggestion. If you zero it for a reasonably good pellet like the h and n and barracudas I found it shot well enough. But any time you change pellets it loses center by (compared to other airguns) an absurd amount. I know that this is kind of a waste of time but I am new enough to this that I still enjoy messing around with different projectiles so for me that gun is not a fun one to shoot at all.
 
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What you are experiencing is scope creep.

Don't take apart the gun. Period.

You can fix it by doing 1 of 2 things.

#1- Buy the $70 BKL 1 piece .007 drooper mount. Buy a Vortex Crossfire2 4-12x AO BDC.

Or pray to Jesus and...

#2- Fix that scope stop pin that's causing scope mount shifting by fully epoxying that pin position into the stop hole backed all way butt against at the rear.of the receiver stop pin hole. Buy a Vortex Crossfire2 4-12x AO BDC.

Your scopes may be broken or near death.


 
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