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Brian Pfleuger · May 5, 2013, 03:04 PM

Yes, measure your sized cases at the shoulder datum. Measure the comparator case at the datum. If the comparator is shorter, which it probably will be, you'll add the difference (to the OAL) so that the bullet is the same distance from the shoulder.

Making the ogive the same distance from the shoulder isn't putting it closer to the rifling, its putting it the same distance from the rifling.
The difference in OAL is from the head to the shoulder, not from shoulder to ogive.

May 5, 2013, 03:04 PM	#14
Brian Pfleuger Moderator Emeritus Join Date: June 25, 2008 Location: Austin, CO Posts: 19,578	Yes, measure your sized cases at the shoulder datum. Measure the comparator case at the datum. If the comparator is shorter, which it probably will be, you'll add the difference (to the OAL) so that the bullet is the same distance from the shoulder. Making the ogive the same distance from the shoulder isn't putting it closer to the rifling, its putting it the same distance from the rifling. The difference in OAL is from the head to the shoulder, not from shoulder to ogive. Last edited by Brian Pfleuger; May 5, 2013 at 03:50 PM.