Well, 2400 fps may be too fast for this bullet. I fired a couple into wet phone books. They penetrated 9 inches and fragmented, the largest piece weighed 124 gr. I'm 100% sure this will drop a deer in it's tracks, but there's no telling where the shrapnel will go. I'd like to try some cast bullets, maybe gas checked. I haven't cast in over 20 years and don't really want to gear up - is there a source for gas checked cast bullets?