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mykeal · December 25, 2010, 08:08 PM

Early definitions of 'caliber', or bore size, were based on land to land measurement, not projectile size. However, even the more recent use of projectile diameter is inconsistent as anyone reloading .38 Special is aware.

December 25, 2010, 08:08 PM	#3
mykeal Senior Member Join Date: October 8, 2006 Location: Northern Michigan Posts: 2,772	Early definitions of 'caliber', or bore size, were based on land to land measurement, not projectile size. However, even the more recent use of projectile diameter is inconsistent as anyone reloading .38 Special is aware.