SU35,
One of the most interesting twist comparisons I've in on was with a then-new plastic-tipped, 55-grain .224 inch varmint bullet. Was hunting prairie dogs, and my shooting partner had a 1-8 twist .223 AR-15, using loads that got around 3100 fps, while I was using a 1-14 twist .220 Swift with the same bullet at 3800. The bullets from .223 "expanded" PD's a LOT more violently than the much faster Swift load!
