7.62x39 ---> .303 British

kuziwr

kuziwr

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I was reading up on another website and I read this:

"The bullets are a touch undersize, but will run OK. Reduce the powder charge or risk a blowup. The Bulgarian/Russian loadings are stiff and are too much for the Enfield. I have heard of using the 7.62x39 as is, but the 7.62x54R is a danger."

Would this actually work? Could i take the powder and bullet from a 7.62x39 and just put it into a .303 british case?

FMJ for .303 is so hard to find, but a crate of 7.62 is about a 5 min walk down the street. Would it be worth trying?
 
kuziwr said:
FMJ for .303 is so hard to find, but a crate of 7.62 is about a 5 min walk down the street. Would it be worth trying?
Click to expand...

Do you mean FMJ bullets or ammo? Milsurp 303 Brit ammo is pretty much non-existent, but FMJ and Match Bullets suitable for the 303 Brit (150gr and 174gr) are easy to find - "Mysticplayer" and "Tradex" both carry them.

Are you shooting hundreds of rounds of 303 Brit, and does accuracy come second to cost? If so, I suppose the few pennies per round you'd save makes up for hoping that the bullet and powder transferred from a 7.62x39 to a 303 Brit case makes up for potentially poor accuracy.
 
Make sure that your sizing die sizes the case mouth enough to provide adequate neck tension, given that the bullets are slightly under-size. This may require sizing without the expander ball. The risk is that the primer will drive the bullet into the throat, but the powder doesn't ignite. It will be obvious what has happened when you don't hear the gun fire and you open the bolt and extract a case with no bullet.

I managed to do this with my No.4, but fortunately the bullet was easily removed by a few taps on a 1/4" steel rod wrapped with tape. Subsequent examination showed that some bullets in the loaded rounds were not firmly held in place.
 
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