if you are going after whitetail only,go with the 45 cal.it is flatter shooting and much longer range than the 50.the new mag 45's shoot 150 grains powder.with the need power-belts,you can't beat it for up to 200 yards.

if you are going for elk,bufflo,or afircian game,go with the 50 or 54 cal.they have more punch at shorter ranges.

just depends on what you want it for. check out the Blackpowder white smoke magazine,it has a lot of good info.

I am not a hunter I am a whitetail population reduction specialest

remember keep your back to the sun, your knife sharp, and your powder dry.