I just shot a 475lb. cow elk with a 300gr. Hornady SST with a 90gr. charge of Black Mag3 which puts that bullet out the muzzle at about 1800fps. The elk was about 90 yards and slightly angled. Shot took out part of the liver and one lung went completely through. I have made a similar shot with a 295gr. Powerbelt aerotip with the same results complete pass through. The plastic tip bullets seem to have good penetration but I am not so sure the expansion is all that great. Possibly on a large bull the results would be a little different. I am considering going with an open hollow point next year if I get lucky enough to be drawn for the hunt.