JGA issue

wkp774

CGN Regular
Rating - 100%
8   0   0
Location
Northern alberta
Got a old jga anchuntz single shot that cocks like a cooey and the extractor is a extra piece, dont know the model. When fired it blows back powder in my face to the right. Any ideas whats up?
 
Sounds like the either ammo is too hot for your gun or you have a chamber/head space issue.Some of the older guns weren’t t made to handle modern 22 pressures or are just worn out after years of use and or abuse
 
Look at the case. If it's split, or deformed, the chamber has wear or has been damaged.
Same deal if soot on the side of the case, it's not sealing.

Without a cartridge in it, look at where the bolt handle locks the action shut. See if you have any slack at the locking lug, by pushing the bolt forward with your thumb. You should not be able to create a significant space there. Often it will split the case around the edge of the rim, if this is too loose.
 
Got a old jga anchuntz single shot that cocks like a cooey and the extractor is a extra piece, dont know the model. When fired it blows back powder in my face to the right. Any ideas whats up?

Sounds like you have a pre-WWII rifle. It may be a .22 S, L, LR firearm. It may also be a 6mm Flobert firearm. If it's the latter, don't use .22 S, L, or LR ammo in it as it's not designed for it. If it is designed for .22 S, L, or LR, it likely has a very dirty chamber and leade area, including a carbon ring.

If this is the case, try soaking a .22 bore mop with a carbon removing solvent and stick it well into the chamber. Let it sit for a while. Use a .22LR bronze bore brush soaked with a solvent and carefully brush from breach to muzzle a number of times. Repeat. This should make sure that the chamber/leade area are free of obstructive build up that can cause the combustion to blow back.
 
Last edited:
Soot on the side of the case, never thought about newer ammo being to powerful, makes sense since the extractor is between the cartridge and the chamber.
 
I was given one that had a similar problem. It had spend time on a fish boat on the Wet Coast and had probably been immersed in salt water more than once.
The barrel had been painted but I used it as a contact gun for shooting animals trapped in a Havaheart.
The chamber was pinged from dry firing and the firing pin had been eroded over time from shooting and dry firing.
Some times it would not fire but the firing pin could be rotated 180 degrees but that side of the pin was too sharp and would cut the rim of the case in firing. It was not a problem since the gun was being shot at arm's length, i.e., a contact gun! It served no other purpose.
It was eventually destroyed rather than being someone else's problem.

Pictures of the rifle and the bolt face would be helpful.
 
Back
Top Bottom