Straight Taper/Match Contour Descr. A B C D Wght #16-LV Modified (#8) 1.200 2.000 .900 23" 5.70# Twist 1-15" The uniformity in Bartlein barrels and finish of the bores is second to none.Their rifling machines are so accurate, they can carry the twist rate to the 4th decimal point (example: 11.3642).The process of Single Point Cut Rifling is the most stress free way...
JC Custom Barrels - .224 - Medium Palma - 1-6.5" Twist, 30" - 4 Groove - Stainless Steel. These are cut-rifled which is the finest manufacturing process.