A Art Eatman Staff in Memoriam Feb 25, 2018 #1 Courtesy blackwidowp61: http://www.exteriorballistics.com/reference/pdf/Twist Tables_Rifle.pdf http://www.shilen.com/calibersAndTwists.html
Courtesy blackwidowp61: http://www.exteriorballistics.com/reference/pdf/Twist Tables_Rifle.pdf http://www.shilen.com/calibersAndTwists.html
