What bullets am I taking to the woods tomorrow...... roundballs, Hornady XTP 300 in44-cal for my Omega and Precision QT Polymer Tip 50/40 in 185 grain, which I will continue experimenting with in my 1:66 twist roundball gun. I'll reserve my 295gr Copper HP Powerbelts for muzzleloader season in December.
I never used a powerbelt, but I I'll add that you have at least 2 very tried and true and effective projectiles listed above.
I use RB in my 54 and its a hammer. The 300gn xtp jsut plain works. Every time. We've had some splashing (?) issues with the 240gn xtps. Not a huge %, but a couple of big deer were either lost or required more shooting and the initial shots proved to be superficial. I would still use the 240 or 250xtp, but I am typically a lung shooter. For shoulders or any angle, that 300 is a winner.
The Qt 40's are fun. I never went with 195's, I used the 250's a bunch. nice soft lead, accurate, flat for a non magnum ML shooter. Again, I use them behind the hsoulder or neck, not in the shoulder.
So anyway, yeah... +1 on your choices and guys can keep the powerbelts.