Daryl, No I haven't measured the twist, They a supposed to be 1-75. Pedersoli recommends a .715 ball on their website. I do have a .690 mold and a bunch of WW balls already cast up, and some pretty thick patching material I was gonna try that too. It should be interesting I am told they need 120 grns or more to shoot good,,,Now I need the weather to clear, had freezing rain last night and snow expected this weekend

,,,,Ed