7.62x25 Rifle Chamber Insert

[krprice84]

Like some keyboards should...

I don't dispute your repeated opinion. Without actually investigating beyond what "someone without concern for personal safety" may do with such things, the verbosity is worth sifting through. Obviously not everyone will, but there are enough folks out there willing to pursue it that a product is actually available. Of course the caveats you've mentioned must be considered before buying the darn thing.

I don't knew if the jab about keyboard was at me.... But I think is simply prudent to mention that using a bullet that's 2 to 4 thou over bore size could be risky if it's a hard bullet that can't be easily swaged down.

My deepest apologies if that's considered being a keyboard warrior

And if I misunderstood something then I actually do apologize. Type isn't very conducive to getting across sarcasm or subtleties of language

 

[krprice84]

>And as I type this, I now want to go measure the bullets of some old Bulgarian 7.62x54r I have to see how much they vary unit to unit.

15 rounds of 1971 Bulgarian 7.62x54r surplus all mic'd out at either within the range of 7.87mm-7.88mm (.3098-.3102), and much of that variation could well be my limited skill.

Even the cheap old stuff is crazy consistent.

Ulrich

Impressive ain't it?

My guess is that internally they aren't nearly so consistent. But the outside diameter of bullets produced in the past half century are generally pretty decent, anything in the last 30 or 40 years is going to be pretty bang on.
My guess is other militaries also had high tolerance requirements similar to the US military

 

[Dad003]

They are proper diameter bullets, I'm pretty sure.

The x25 uses .310/.311 so does the 303

wrong , the 30 cal alias , 30-06 , 308 are .308 bulelt size ,

7.62 x39 and 54r are .310

303 brit is .312 , it a very small difference between them but it enough to make a kaboom ...

 

[Rayleigh_Scattering]

An interesting state of affairs that the cheap consumable components one feeds into the machine are more tightly toleranced than the machines themselves.

Ulrich

 

[krprice84]

wrong , the 30 cal alias , 30-06 , 308 are .308 bulelt size ,

7.62 x39 and 54r are .310

303 brit is .312 , it a very small difference between them but it enough to make a kaboom ...

But remember, you're firing a smaller bullet through the bore. If you have an Enfield with an adapter, the bullet will be smaller. No danger there other than poor accuracy.

My concern would be the 308 or 30-06 adapter that allows you to fire Soviet ammo.