Another vote for k.e. rather than equipment limits. The elephant mentioned above was taken w/ 900 gr arrow at about 250 fps for about 125 # k.e. Same guy took two moose w/ a 150# Vixen at a k.e. of about 67, and I shot a 1000 3 cow buff, cut rib in two off side, 446 gr arrow at 290ish for 83# k.e. My bhead was a slick trick Mag, elephant was two blade, can't help on rest. Good luck!

I'm confidant my buff rig would kill one of your bears graveyard dead if I took the shot I'd wait for.