ALL RIFLE Calibers: Single Cartridges, All Countries
-
-
Inch Cal., Rifle Singles, Current & Obsolete
-
Mostly United States.
-
-
Metric Cal., Rifle Singles, All Countries, Military & Sporting
-
Current & Obsolete, All Countries "Rmm" means "rimmed" and "no R" before "mm" means "rimless" Normally, the first number is diameter of projectile in mm, the second is case lengthin mm (not overall length).
