Okay guys, I'm entering into a world I've never even thought of before, so I'm probably gonna need some babysitting. Recently, I picked up an H&R 300 Blackout. I plan to use it, my X7 .308, and my 6.8 AR for hunting deer this year. Tomorrow however, I'm sending my H&R Frame to their factory to have a .44 Magnum barrel fitted, and will plan to use it as well. This, is where I become lost. I know Hornady is now making the LEVERevolution ammunition, and that seems like an excellent hunting round. I don't currently reload, so of allllllllllllllll the choices out there for factory ammunition, what would you folks recommend? Also, has anyone found ballistics on .44 Magnum ammunitions from say.. a 20" barrel? Everything I'm finding is from a 7" barrel. Thanks for all your help in advance!