I will be using my 454 SRH this year for deer and wanted to get some opinions on ammo choice. Hornady makes a 300 gr. HP and I was wondering in anyone knew the effectiveness of it for deer sized game? Would it be worth using or should I just stick to a nice heavy hardcast? I want something in the 300-330 gr. range. I'll be using hardcast for black bear but didn't know if I should use those for deer or if the HP would be more effective.