Volquartsen 10/22 discharge in mag

[DIGGER2]

Good day gentlemen, so I got a text from my buddy this morning and asked me if I had ever had a rimfire go off in the magazine. I said uh no. Apparently he was just finishing up at the club and he had a round go off in the rotary mag. He said he figured the bolt clipped the round setting it off. The sparks flew and the bullet lodged itself in the barrel. So I’m wondering if you guys have ever seen this before. My buddy has shot thousands of rimfire and hasn’t had this happen before. Here’s a pic of the magazine.

 

[.22LRGUY]

Only thing that comes to mind is that the bolt might (somehow) have hit the round when traveling forward, as noted. Shouldn't be able to do that of course. Anything hung-up on the underside of the bolt? Any possible debris/pc of a spent case? Something crashed into that rim, and hit it hard enough to deform the case. Should be nothing about the bolt that will do that...?

 

[DIGGER2]

Thanks for the reply .22LR, I’ll send him your reply to look for something that would catch the rim. I’ll try and get some more details on the bolt situation.

 

[old303]

The bolt should be squarely pushing on the rear of the round, not clipping the rim (ESPECIALLY not on rimfire!) so a magazine not quite fully inserted would be my first guess, and after the fact with the magazine back out would be hard to confirm. Second guess might be to check if there's any flex to the bolt travel that would allow something, a bit of dirt or debris maybe, to deflect it upwards as it comes forward.

 

[45CAT]

Was the round jammed in the mag ?

 

[lone-wolf]

Yes, I had a bc 25rnd magazine back in the day, and a round detonated in it. Surprisingly the magazine still functioned afterwards.
I don't know if the round somehow got rimlocked or what, but it failed to feed and instead detonated where it sat.
It was seated in the magwell as it should of been.
First round in the magazine too, the rest weren't affected.

 

[Suther]

My buddy had something similar happen with his 10/22. The round went off inside the action but not in the chamber, as if it picked it up from the magazine and hit the primer at the same time. No idea what caused it, I think it only happened the once but I'm not certain on that.

 

[DIGGER2]

Thanks for the replies fellas. It was his last round in the mag, so were guessing it got jammed up like 45CAT mentioned. He has had FTF and FTE on this mag before, so now he has just shelved this mag in the garbage. Nothing on the gun itself seemed to be out sorts. This fella keeps his guns ridiculously cleaned after every range session, so debris wasn't an issue. Ammo was RWS R50.

 

[Potashminer]

Your picture - I have had only one .22 round go off when not in a chamber, and several pieces of casing came off - basically the side wall "blew out" - your picture does not show that - maybe that case was at least part ways into a chamber?? I would be wondering what was supporting the case walls? Not sure how the bullet would "lodge in the barrel" - looking at my Ruger 10-22, a cartridge in the magazine is no where near in line with the chamber?? I would be surprised if a cartridge going off in the magazine could cause a lead bullet to go forward - and not real sure at all how it would find its way into the chamber?? Maybe I simply do not understand the scenario.

 

[horseman2]

The tension on th mags is critical to prevent a round from popping up too high when feeding.
The round will be crimped along the side of the side and will not enter the chamber.
One of mine appears to have a little too much tension when loading the magazines so the next shoot it will be marked, cleaned and readjusted.
My comments are based on my 10/22's. I have a tool that speeds up the assembly process.