MemberJanuary 9, 2020 at 5:38 am21 Bullseyes
Muzzle velocity will impact stability. Faster mv = faster spin for a given twist. The issue is the distance you intend to shoot I believe. Spin rate decays over time and atmospheric conditions make a big difference in stability. Find one of Brian litz’s books on ballistics and read up. He is a good writer and knowledgeable.
Ps. Barrel length is irrelevant, it’s about velocity. Longer barrels allow higher velocity to a point due to more complete burning of powder, but 3000 fps in a 24” barrel = 3000 fps in a 28” barrel as far as exterior ballistics are concerned.
Pps you are correct btw higher velocity for a given twist will let you shoot a longer Bullet stabilly
Meaning if you shoot a 200 grain 30 cal at sea level at 2500 fps it might not stabilize, but at 3000 fps it might.