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Old July 5, 2010, 10:05 AM   #16
zxcvbob
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Join Date: December 20, 2007
Location: S.E. Minnesota
Posts: 4,720
In a short-cased high pressure cartridged like a 9mm, the bullet seating depth is critical. In long-cased low pressure cartridges (and usually even long-cased high pressure carridges like .357 Magnum) small differences in bullet seating don't matter very much.

So don't worry about the bullet profile in .45 Colt until you start messing with >300 grain bullets or full wadcuters.

Worry very much about the bullet profile and OAL in a 9mm or .40S&W
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