So I just bought a .454 and because I live in communist CA, I bought some copper Barnes Vortex 250 gr ammo. We can't shoot lead where I might hunt hogs with this thing so that's what I bought. Fine for hogs. But the main reason why I bought this fire breather is for bear backup in AK. For that, will the 250 gr copper hollow points suffice, or would I be better off with some heavier hard cast loads? Any specific factory ammo suggestions?