On Sun, 01 Jun 2008 08:59:19 -0700, mac davis
wrote:

m-14's (7.62 mm?)

Yes. I was there when the Marines switched from the M1 to the M14.

The NATO 7.62mm round used by the M-14 and the M-60 is physically
interchangeable with the civilian .308. The 30-06 caliber (M-1, BAR,
M1919 MG, etc), .300 inches, is measured from land to land in the
barrel. The .308/7.62mm caliber is measured from groove to groove. The
bullet diameter for both 30-06 and .308/7.62mm calibers is the same.

Tom Veatch
Wichita, KS
USA