-----Original Message-----
Well if you want to be exact, the .308 and
7.62mm rounds are two
different things! .308 is the commercial designation and 7.62mm is
the
military designation and the two rounds are
slightly different. Many
There are numerous .30 caliber rifles and pistols. I was referring to
the diameter. There is the .30-06 (WW I/II vintage), the .308 (late
50's, early Vietnam vintage, NATO), the 7.62x39 (Russian, Korea to
present), the .30-30 (the famous lever action Winchester of the late
1800s), the .300 Savage (first rifle to exceed 2000 fps, also late
1800s), the .30 M1 carbine (WW II vintage), the .300 Winchester Magnum,
the 7.62 Nagant, etc. All use the same basic diameter .308 bullet.
No, they don't. The Nagant (7.62x 64) has a groove diameter of .310"
and
uses a .311"-.312" size bullet. The 7.62 x 39 is also an odd size but I
don't remember the exact measurement, it's probably also .311"-.312".
Some
of the US bullet companies are now making special bullets for those two.
FWIW When Ruger made the Mini-30 they sized the barrel for the (US)
standard .308" bullets instead of the normal Russian ones.
Joe