Quote:
Originally Posted by drv2die
oh old mech what do you use the 54r bullets for. i thought they where .309 in diameter. i have a 500 rounds on the 7n1 sniper bullet/ armor piercing is what they called it cool stuff.
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.303 Brit
7.65 Argentine
7.7 Jap
The groove diameter on most Mosin Nagants is .312-.313 with some of the Finns as tight as .308 (M28-30), which can actually use the same .308 diameter bullets as US .308 or 30-06.
As a general rule the 54R bullets mic at .310-.3105. With .312 and .313 grooves as their ideal match, the general rule for jacketed bullets is .001 under groove diameter.
regards
Mech