Re: .30 cal cartridge with .640" rim?
just neck down the 338 Snipe Tac and you are there..... (although not short)
use appropriate powders for the velocity you are after and if need be you have the capacity for the 2k meter shots
How is it y'all still don't know the difference between CALIBER and CARTRIDGE ??
"In guns, particularly firearms, caliber or calibre is the approximate internal diameter of the barrel, or the diameter of the projectile it fires."
"Fear of weapons is a sign of retarded sexual and emotional maturity"