I cast both sizes for the 50 and 54 calibers. They shoot excellent if you don't push them hard. One deer they work really good. I have a friend that shoots the 300 grain with 70 grains of Pyrodex RS and he has taken a few deer with them with no problems.
I have shot five deer to date with them. Again, I think the largest grain I used was 80 at very close range. And the wound channel is much like you'd expect with any conical. I also shot them out of my CVA Staghorn Magnum and they shot real good.