I'm working on a 358 Winchester project, and I was curious if anyone had success with cast bullets between 250-320 grains. I can't find much data on them, but I think it'd be fun to play around with. Stabilization calculators show that above 250gr, bullets tend to get over stabilized by the common twist rates, 1-12, 1-14, 1-16. But in the face of that, I'm curious as to peoples experiences.