Gamo Replay 10x IGN gen 1 - shooting when barrel closes

[CptNemo]

Hi fellow airgunners. Not so long I purchased GAMO Replay 10x IGN 5.5mm rifle. Rifle is like new (bought it from a friend) an it shoot 30-40 pellets before me.
Used it for two weekends for sighting, practicing and various testing in the field, when yesterday it surprisingly fired on barrel closing!
Being around weapons for long, I double checked safety on, and still when cocking piston I always try to close barrel towards empty space (target area, or ground) so it fired safely!
I repeated dozen of times, and it happens 2-3 on 10 barrel breaking!!!
Does anyone has any idea, what went wrong!
Rifle shoot maybe 100 pellets!
Kept in home, no T no humidity.
Oiled on joints, and moving parts properly.
Never dropped!

Please help, cause this does not feel safe to shoot with.

Best,

Cpt. Nemo

 

[Richfromohio]

Sounds to me like someone was playing with the trigger adjustment screw? There are a lot of mods out there telling you how to lighten up the trigger. What they don't tell you is this can be the result of it. I would call Gamo they might help you out even though you're not the original owner?

 

[Hateful McNasty]

..... Or did the screw mod and cranked it in too much..

If stock gamo trigger screw it dont adjust nothing at all ( cat trigger = cant adjust trigger )

If its factory or nothings tampered with to make it lighter then I'd contact gamo for warranty before you put your eye out with that thing ..
If your gun is a 5 year warranty gun. Gamo foots the full bill shipping and all in the first year . So they will send you a pre paid ups shipping sitcker.( Fyi)

 

[CptNemo]

Tnx guys for answers it confirmed my hunch, that probably the trigger is problem.

I did short research regarding Gamo CAT dual action trigger adjustment, and found what does what. One screw tunes resistance, the other position. Few fellow Gamo users noted that 2.5x6mm screw is rather shallow, so when shooter preference is to use deeper triggering position (further back), it can release mechanism on barrel closing (as soon as barrel lock enables triggering). I live in urban zone, so weekend is my only shooting option will update on.

Cpt. N

 

[Hateful McNasty]

Ill be expecting a full report

 

[3Crows]

Usually when the barrel snaps closed the barrel will be bent. If the barrel is still straight, after adjusting the trigger to a safe result, cock the rifle and bounce it or drop it on the butt. Of course with it aimed in a safe direction. Or put it in your cradle and smack the butt with a rubber mallet. If it fires it is not yet safe. Personally, I do not trust spring rifles. The sear is holding the full force of that powerful spring. What could go wrong! I cock my one remaining spring gun only when I am ready to shoot. If the squirrel escapes me during that time, oh well.