Boys, boys, boys.....really.......
Just use anything above 300gr that isn't a hollowpoint. Really...as long as you shoot a well constructed bullet...hardcast, jacketed, or even...a hornady XTP (which is a hollowpoint), you'll have enough gun. The .480 has enough diameter to penetrate almost everything imho.
Yes DP...the guys are right and I'll always defer to the wisdom of Redhawk! Do as he advises, he'll never steer you wrong.
Have a great hunt and don't forget to give us the details and post the pics!!!!!
Good Hunting!!!