Re: the twist issue, if a combo is accurate, then the twist is sufficient. As to how it affects terminal bullet performance, I AM a Fan of fast twist in rifles for many reasons, and they have a place in say revolvers shooting heavy for caliber slugs in magnum class rounds, assuming your cylinder accommodates said COAL.
All that said, I would have to see expansion test in bullets from typical handgun rounds like a 40 to be convinced there is a difference. I believe the construction has more to do with expansion etc. than anything else.
Personally, I just cannot fathom a meaningful different, at speeds say 1000-1200 fps - in how various twist rates change expansion. Anyone have any solid test info, I will be happy to review it.
