Winchester model 68 frequent fail to fire ?

icedog

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I have my dad's first boyhood .22, an early (1934/35) Winchester model 68 with grooved forestock and rear peep sight. Dad lost the original bolt many years ago, and eventually replaced it with a bolt salvaged from a bent barreled model 67 he found at a garage sale, probably at least 30 years ago. I'd like to pass the rifle along to one of my grand kids, but would like to solve the ftf issue first.

A few years ago I removed the bolt, totally disassembled, cleaned and reassembled it - in fact I may have done that a couple times. Regardless, the ftf trouble remained. Sometimes recocking the action once fires the cartridge. Other times it takes several more attempts before it fires. I think I was using a combo of fairly new (at the time) Federal LR, and some older, but properly stored and previously unopened CIL LR target rounds.

Should I be looking for parts, such as a new spring, or are there other possible solutions to pursue first?
 
I would be looking at getting the headspace problem fixed... excessive headspace is the biggest cause of miss firing in a rim fire. Followed by excessive headspace and a weak firing pin spring.
 
Thanks Dennis.

Your suggestion of excessive headspace makes proper and common sense of course. So what is the fix? Is it something a fairly careful, though not trained or particularly talented tinkerer might accomplish, or do I need the services of gunsmith? If it requires a lathe, it is certainly beyond me.
 
I believe the easiest is to build up the back of the bolt handle so the bolt is held tight against the barrel when closed. Various methods can be used. You can test the 'slop' now with a feeler gauge. Possibly a shim soldered to the locking area on the action would fix it.
 
Thanks gentlemen. I don't really remember how tightly the bolt closed, or what the strike looked like, but those are both fixes I would feel OK about attempting myself. I'll get the gun out of lock up and have a look at it in a few days when time permits.
 
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