Thanks everyone for the info so far, but thanks to luckydawg13 I had to check into the type of cartridge I can use. It had never even crossed my mind about the type of cartridge I can use here in Michigan. I hunt below the rifle line and here is what I found about hunting with a handgun below the rifle line:
"A conventional (smokeless powder) handgun must be .35 caliber or larger and loaded with straight-walled cartridges and may be single- or multiple-shot but cannot exceed a maximum capacity of nine rounds in the barrel and magazine combined".
With this info now, my options are limited: 357, 41, 44, 45, 454, 460, 500, and maybe a 45/70. So which one is good for a 200yd shot?
None of them are "good" for a 200 yard shot.
All of them, at best, are extremely marginal for anything beyond 120. I hunted for years with a .357 Rem Max, which IMO is the best straight walled deer cartridge available. There are two things you're going to have to understand about handgun hunting with straight case cartridges.
First, they are a lot more like a shotgun with slugs than they are like a rifle with a short barrel. Therefore, their effective range isn't going to be anything like a deer rifle.
Part of the challenge of handgun hunting is that you need to get close. I took up handgun hunting because I loved the challenge and, to be honest, rifle hunting was just gettting too easy. Any deer I could see was basically meat in the freezer.
Secondly, while you
could take a 120 yard + poke with these cartridges, most people shouldn't. From what I've seen on the range, most people VASTLY under estimate how difficult it is to hit a precise point on a target at anything over 100 yards. They see a scope on a handgun and assume it's going to be easy-- just like shooting a rifle. So I let them take a few pokes at 100 with my contender. Most decent rifle shooters can't even keep the contender on the paper at 100 from a bench.
Hunting handguns demand practice if you expect to be able to hit anything. Even if you shoot short range pop-pop style handguns it becomes a whole new game when the target is out at the 100 or 125 mark, especially if you start practicing using shooting sticks or other realisitc field positions. Anyone can eventually shoot well off a bench with sandbags, but unless you've got a bench and sandbags in your deer stand, more will be required.
Grouse