Carried both semi-autos and revolvers for half a century. Only recommend revolvers now. Carry two Ruger Super GP100's in .357 magnum, OWB. Use 8 round full moon clips. 158gr Remington HTP357M2 ammo. Fight like you train. For me, I don't need to go back to the semi-auto days. I'm satisfied with the accuracy, reliability, durability, ammo options, and quality of Ruger's Super GP100's, as well as the earlier iterations of GP100's- over the properties only found in semi-autos.