I'm playing around with the same bullets from a Cast boolets group buy, I have the plain base version and the gas check version, also waiting on a 405grain version with gas check. For me they are very accurate and pure hell on big beavers, but I'll have to wait till Nov. to try them on deer, for now I'm telling folks to wait for a broadside shot on deer. I don't know if the Penta point of yours will make any diff. on game or target. I'm really looking forward to the .513" hollow point(big gaping hollow) for my 50/90 Sharps. Keep us informed on results with that mean looking bullet...