.30 caliber bore dimensions

[jmoore]

Some exceptions to "regular" .30 calibers:

European bore specs for 7,62x51 run a bit smaller. 0.307" bores are normal.

It also depends on how loosely one defines .30 caliber weapons. 7,62x54R- some Finn barrels are normally 0.308" but most 54R runs bigger.

7,62x39
7.5 French
7.5 Swiss
7,35 Carcano- about the only true .30 caliber as the bore on these is nominally 0.300"

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.