Ok, not rehashing the merits of cast & jacketed!
I want to experiment & will probably try some Aframes.
With that in mind & considering I will be limited by the velocity I can acheive in my 7.5" 44 mag Super Blackhawk Hunter, and considering the game will be (Possibly) black bear, moose, & brown bear, would you go with 280s or 300s? Would the added speed of the 280 trump the added weight of the 300?

Anyone have real world velocities out of a 7.5" revolver? My chronograph died an ugly death a few years ago when a gas check from my 14" encore in 450 Marlin achieved full penetration of it's face. Double the opportunities for fun with cast!!!!

Still looking for anyone that has experience with Speer Deep Curl 270s on Moose size critters or brown bear.