QUOTE (TigerStripe @ November 2nd 2009 9:33 PM)

While .22lr doesn't make a good round through a 5.56 barrel, it does pretty good with a 5.56 can. The diameter difference is only .001".
TS
just for reference the number I blued in the quote from TS can be gauged by this lil tidbit...
a standard sheet of A4 paper(the paper you will find that is commonly everywhere, just open yer printer or copier drawer) is .032" in thickness, I use it all the time for touchoffs on mills
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