308 rounds fire in a mosin nagant?

[ctdonath]

I found that I could form C4 into the correct shape of a 7.62x54R cartridge.

Not funny, as has already been done. C4-loaded ammo has been made and scattered in battle zones where opponents in dire need of ammo will pick up and use whatever they find, to ill effect.

 

[Cthulhu]

Couldn't be much worse than the rifle brought into the shop, the owner of which had sucessfully fired 5 .308 rounds in it. Unfortunately it was a .270 Winchester. I would have figured that the high recoil and herculean effort required to lift the bolt would have been an indicator that something was wrong. The funny looking and extremely hot casings would have been another clue. In the 1920's Julian Hatcher fired 8x57 Mauser ammo in a 30'06 rifle in an attempt to blow one up. No ill effects aside from recoil issues. That was a 0.015" difference in bullet diameter. The .308 in .270 combination (0.308-0.277 =) gives a 0.031" disparity in diameter, which is more than twice that of Hatchers test. In this case the rifle was returned to the manufacturer where the barrel was replaced. While that may not have been necessary, it certainly assuaged the customer.

 

[Smokey Joe]

"Stupid" questions

In the shop where I work, we deal with many newbies, some of whom are intimidated by the knowledgeable clerks. They sometimes apologize for asking a "stupid question."

My response has always been that there are no stupid questions, and even if there were, they are easier to handle than stupid mistakes. This usually brings a smile, and I answer the question, and we get on with business.

Seems to me that, if the question occurs to the person, his level of understanding is such that it appears to be a reasonable question. No one asks deliberately foolish questions. (Well, not usually!)

If the basis of the question is poor, or lack of, information, that is what teachers refer to as "the teachable moment," when your student is ready and open to new, more accurate, information. Teachers regard these opportunities as gold nuggets.

IMHO, so should the rest of us.

 

[JShirley]

I found that I could form C4 into the correct shape of a 7.62x54R cartridge.

Hilarious, thanks.

Incidentally, Carl, many things that have actually been done are still funny.

John

 

[Jim K]

Hi, guys,

Gee, I hate to spoil all the fun, but (if everything is in spec) the .308 (7.62 NATO or 7.62x51) won't fit in a 7.62x54R chamber - the shoulder is too far forward. And chamber dimensions are such that even if someone did force the round in and fire it, about all that would happen would be a bulged case.

Don't misunderstand me. I never recommend firing any gun with other than the ammunition designed for it, but mistakes do happen and they don't all result in a mushroom cloud with instant destruction of the gun, the shooter, and half the state.

Jim

 

[mattd]

Still not a chance anyone should take.

 

[jem375]

Not a good idea

 

[No4Mk1*]

7.62x51mm will fit in a 7.62x54R chamber with the bolt closed. If enough metal was added to the exterior of the 7.62x51mm case it might fire safely. There is internet rumor of 7.62x51mm rounds being found in the Balkans with aluminum foil wrapped around the case with a copper wire wrapped around the rim of the 7.62x51mm round so that it would chamber and fire in a 7.62x54R weapon without case rupture. I would do this only if my life depended on it. As the case may have been in the Balkans.