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James K · September 3, 2013, 09:03 PM

Bart, you are probably right about the 220 grain bullets but the 1:10 twist goes back to the Krag, which fired the same bullet. No computers back then; Army ordnance arrived at the 1:10 mostly by trial and error.

Jim

September 3, 2013, 09:03 PM	#8
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	Bart, you are probably right about the 220 grain bullets but the 1:10 twist goes back to the Krag, which fired the same bullet. No computers back then; Army ordnance arrived at the 1:10 mostly by trial and error. Jim