Holster, I've used everything out there as far as barrel length but probably like the 5 1/2" Bisleys the best, of course going 1/2" either way isn't a big difference. What I do with all my sixguns is first, narrow the front sight to 1/10", 99% of them come 1/8" inch, thats why to thick for most of us older guys, we need daylight on either side of that sight, its really bad if you are shooting a 4" barrel gun. My oldest son is a member of the gunmakers guild so he does all my gun work including my competition revolvers. Narrowing them from .125" to .100" makes a huge difference, some people will disagree but they are standing inside an indoor range or shooting outdoors at midday, if you are a hunter you don't get those kinds of conditions very often in the hunting world, its either very early or very late, that buck or bull is standing on the edge of black timber, etc, you have to get a good sight picture with iron sights to be successful. When I shot that cow elk 2 years ago at 168 yds, she was standing in 18" of fresh snow, she looked as big as a bus & the sights were sharp & clear, I knew I could make that shot, under bad conditions where the sights aren't sharp I've passed many times at 50 yds or less. I also paint the front sight white with fingernail polish, I let it dry & then go over it with flourecent orange, this works much better than just using the orange. Again, you are almost working against yourself by going with huge bullets at maximum velocities, if you are somewhere in the 1100-1200 fps range you'll kill anything on the planet with good slugs. Velocity gains you a little flatter trajectory but we're shooting iron sighted revolvers here, how far are you going to shoot? I love the big heavy bullets but the added recoil works against you, its a plus if you can deal with it, most can't but won't change. Its too bad many don't understand the killing effeciency of a big, flat nosed cast slug above 1000 fps, there's no bad angles, I just make sure I'm lined up with the vitals somewhere on the offside & touch it off, I've never lost an animal but I couldn't do that with a jacketed slug. If you have to get rifle type results with your sixguns, better switch back to rifles. Good hunting.
Dick