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Old October 11, 2011, 05:53 PM   #2
mehavey
Senior Member
 
Join Date: June 17, 2010
Location: Virginia
Posts: 6,869
Q1: What is the starting base diameter of your (lead) bullets before loading? (How does that compare to the diameter of jacketed rounds?)

Q2: What is the resulting diameter of your cases at the mouth of your loaded (lead) rounds?
It should nominally be 0.420-0.423", or whatever minimum drops the cartridge into the
barrel with a satisfying "plunk" when it stops.

Use the taper crimp until it will seat all the way against the chamber stop by gravity alone.

Last edited by mehavey; October 11, 2011 at 06:10 PM.
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