Ian
Notorious member
I know that 7.62 x51mm NATO chamber specs are still supposedly 'classified', or whatever, but FN Belgium has them, as does IMI...and their products are not inaccessible for measuring.
Revolvers are a series of funnels. My whole point here is that if you have a smooth funnel, size the bullet to what shoots best. BUT, if you get leading, you might just be shaving lead on the sharp edge of a too-small hole somewhere. The exact same thing applies to the modern plastic pistols that have extremely sharp throat entrances that react poorly to oversized cast bullets.
Revolvers are a series of funnels. My whole point here is that if you have a smooth funnel, size the bullet to what shoots best. BUT, if you get leading, you might just be shaving lead on the sharp edge of a too-small hole somewhere. The exact same thing applies to the modern plastic pistols that have extremely sharp throat entrances that react poorly to oversized cast bullets.