6.5 creedmor, .260 rem, 6.5x55, 6.5-06, 6.5WSM, .264 win mag, 6.5-.300Wby mag. and many others not listed. the 1-9 twist is suitable for most 6.5 bullets. it is not suitable for the new ELD-X or ELD-M bullets.
these barrels feature a 1.200" shank, and a traditional sporter taper to a 0.685" muzzle daimeter at 26". These blanks are 27" long, made by the Wilson Arms barrel company and are button rifled.