Hey guys, I have a question or two about muzzleloading.
I traveled to Washington state a few summers ago and shot my uncle's blackpowder percussion caps at a rendezvous. I had a real fun time, and even with a badly burnt hand still shot well

Well it's been a couple years, but I've been researching it lately and I'm very close to deciding on a rifle.
I'm looking at the Lyman Great Plains Rifle in percussion cap in either 50 or 54 caliber. Most of the time this rifle will be used at the rendevous' for target shooting and the fun competition that comes with them. But, when dear season comes around, I'd like to use it for hunting. The idea of hunting with the old technology just seems that much more exciting.
I've talked to my uncle, and he says most shots range from 20-100 yards, with occasionally a shot to 125 yards and the average shot being 50 yards or so. I'd like to hunt roundball if its a viable option.
So my question basically is, 1) will the Lyman GPR work well for my intended use, 2) which caliber would be better, 50 or 54 and 3) can I use round ball at those distances or would conical be a better choice?
Thanks in advance for the information