I just don't know if that Hornady will stay together and get to the boiler room. It is a risky thing to try. I might just use the 435gr Buffalo Bullets with a round nose on elkso the Trajectory stays close. Do you think the Hornady GP would also be good on antelpe? Would the 425gr that I plan to use on deer work or would it be best to go with the 390gr on antelope?