Was getting my specs ready for pac-nor and thought a discussion about twist rate might be helpful. Pac-nor only offers an 8 groove 1:16". I believe Shilen only offers 1:14". I have been exchanging PMs with a fellow that had a re-bore done at 1:18" and his shoots everything well up to 400 grains. He indicate that Fred Zeglins 411 Hawke was spec'd at 1:20.

Is there a twist rate that doesn't work, lol?

Anybody having trouble with heavies in a 1:16?