Even a .22 rimfire can cause injury.

[gitrdun]

The pictures are of a .22 rimfire old German made rifle single shot that was likely manufactured prior to WWI. The customer wants it to fire as it did not do so. First, I found that the firing pin was far too shot, thus I made a new one. I found that I had to push the bolt handle ahead towards the chamber for it to fire even with a new firing pin. Fine, I layed a bead of weld on the back face of the bolt handle and machined it down on the lathe to give an extra 0.010" thickness as that is what my dial indicator showed it to be missing. Once done, a longer firing pin, rebuilding the wear and tear from the bolt handle, it fires every shot. However, a major problem still exists. Look at the bulge on the spent case. I don't know if you can see it, but the head of the casing is also bulged an looks convex. Of course, it will fire, but it isn't safe to do so. The moral of my story here is that even a .22 rimfire can cause issues and be dangerous to fire. In this case, there was no blow back, but this fellow will be told that "yes" his gun will fire, but I certainly don't recommend it unless the issue is fixed. I already know the cause if this problem and can fix it, but I figured that I'd throw this out for you guys and see if you all come up with a diagnosis and solution. FYI, the firing pin strikes at the 12 0'clock position, the bulge is directly 180 degrees opposite at the 6 0'clock position. Go...

<a href="https://postimg.org/image/oyynudbyn/" target="_blank"><img src="https://s19.postimg.org/oyynudbyn/20170807_162555[1].jpg" alt="20170807_162555[1]"/></a>

[mgvande]

Looks Like the bolt is not supporting the rim. The firingpin is pushing the cartridge forward and the case head blows out cockeyed due to the clearance. The fix is putting more material on the bolt handle to satisfy the headspace issue or setting back the barrel. Do I win?

[gitrdun]

No.

[mgvande]

Originally Posted by gitrdun

No.

Fine then.

I know. Bolt face is not square to the chamber.

[260 Rem]

Saw the result of someone ...filed a bevel on the feed ramp to make it feed better (Cooey tube repeater)...blew the bottom out of the case near the rim...ignited the round coming up from the tube. Split the stock.

[mgvande]

Originally Posted by 260 Rem

Saw the result of someone ...filed a bevel on the feed ramp to make it feed better (Cooey tube repeater)...blew the bottom out of the case near the rim...ignited the round coming up from the tube. Split the stock.

He must of removed allot of material. Wow

[Puma]

Looks like the round is not chambering completely and its firing out of battery.
Could be a build up of lead, etc ?

[David Henry]

The extractor is not supporting the case body when at peak pressure. The bulge that you pictured is where the case expands when it is fired, the brass flows outward onto the extractor surface. The JGA Anschutz and Zella Melis single shots along with countless others of Austrian pedigree with their draw back extractors are famous for this anomaly. You can possibly source a new extractor from the internet to cure this or build one up your self and hand fit to better support the cartridge in the chamber. Of course both options far out weigh the value of the firearm your trying to repair. Not like that's something new to a gunsmith. D.H.

[Father of five]

It's chambered in 22 long not 22 long rifle

[crosman177]

It's been shot out with 22 short corrosive

[Grizzly Adams]

Drill out, sleeve and rechamber ?

Grizz

[wolf308]

Cut up and discard. Then make trip to cabelas.

[bat119]

Try firing shorts?

[gitrdun]

Originally Posted by David Henry

The extractor is not supporting the case body when at peak pressure. The bulge that you pictured is where the case expands when it is fired, the brass flows outward onto the extractor surface. The JGA Anschutz and Zella Melis single shots along with countless others of Austrian pedigree with their draw back extractors are famous for this anomaly. You can possibly source a new extractor from the internet to cure this or build one up your self and hand fit to better support the cartridge in the chamber. Of course both options far out weigh the value of the firearm your trying to repair. Not like that's something new to a gunsmith. D.H.

You nailed it 100% David. In fact the gun is a JGA - Zella Mehlis. Made in 3ermany (that is not a typo). Yes, the extractor is the cause and will have to either be replaced or repaired. I did give a slight clue to the problem by stating that location of the firing pin @ 12 o'clock and the bulge at 6 o'clock (extractor location). In spite of the stock being cracked in several places and repaired with a mix of screws and nails, it holds "sentimental" value for the owner. Whenever I hear the word sentimental, I'm immediately thinking "this could be interesting", knowing that the fire arm value likely does not exceed the price of scrap metal. Good call D.H.

[marxman]

I had a new chiappa that mangled and stretcb
Hed cases something like that and it spit stuff in my face. Good thing i always wear glasses i dont know how anyone feels safe without them. Took them a year to repair it