Simon, He's got to use a bullet that performs for him. I shot the Hornady XTP 300 grain bullets over 90 grains of Pyrodex RS as well as the 303 grain jacketed hollow point that Remington had out a few years ago also over 90 grains of Pyrodex RS. The bullets were incredibly accurate but did not perform well for me on deer. My hunting partner shoots the same load and loves it with the same amount of powder. My guess is I simply didn't have the velocity for the bullets to work the way they should. I asked for advice and purchased some Precision Rifle dead center 220 grain bullets and i shoot them with 80 grains of 777. I've shot 2 deer with them. One dropped in its tracks. The other ran 30-40 yds straight towards me and died. Both expanded incredibly well and did their job. I won't hunt with anything else with my current ML. If he is shooting at shorter distances maybe he can lessen his powder charge and shoot the same bullet or shoot a heavier one with his current charge. Like Flintlock said, match the bullet and powder with the situation and see what he comes up with. Since I've switched to the 220 grain bullet I'm much happier. There is much less recoil, I use less powder and I'm killing deer. I would feel confident to shoot this load up to 100 yds, much longer than I'll ever have the opportunity to shoot around here. Just FYI, I was to the point of giving up on ML'ing if I had lost another deer so the dead centers have made me enjoy muzzleloading again.