The 30-30 Winchester centerfire rifle cartridge is a .30″ caliber, rimmed, bottleneck cartridge case design and reloadable. Rifles chambered in this round have a barrel bore land to land diameter of .300″ and a bore groove to groove diameter of .308″.Common barrel rifling twist rates for the 30-30 Winchester are;1 in 12″. Common barrel lengths for the […]
