- Dec 18, 2004
What is the optimum twist rate for a 300 Winchester Magnum with a 26" barrel shooting 150-168 grain bullets? Thanks
a 1-12" twist will stabilize those bullet weights, but a 1-10 is probablly better as it will also stabilize these bullet weights and leaves the option of shooting heavier bullets in the 180-220g range. With a 30cal that has that much case capacity, you never want to limit yourself to lighter weight bullets.
Many .308 Win rifles have 1-12" twist bbls, but they are severly limited in possibilities.