.224''/5.56mm #4 sporter 1-7'' twist
This is a perfect choice for a .22-250 build or a .220 swift for shooting a heavier bullet for longer range and more energy.
It is also considered the standard for the .223/5.56. It is a great all around twist to act as a catch all that will suit a wide range of weights.
these barrels feature a 1.200" shank, and a traditional sporter taper to a 0.685" muzzle diameter at 26". These blanks are 27" long, made by the Wilson Arms barrel company and are button rifled.
The contour blank is 27" in length, made by the Wilson Arms barrel company and are button rifled.