Again, gents, many options here and more than a little entertaining. Actually I think it's a great discussion. I've enjoyed hearing both the "historical" responses and the "this is what I do" responses.
Shooting tin cans (what someone here called "The Campbells Gang") is my favorite form of shooting. I can vary between a form of precision shooting and fast shooting at will, with positive reinforcement when I make a hit. For most .44 and .45 revolvers, I use cartridge loops to hold the spare ammo, although I sometimes get lazy and just put the plastic ammo box on the ground if I'm not walking around. For my .45-70 rifles, I wear another cartridge belt backwards (so the loops are in the front) above my pistol belt. I have some old photos to support the historical validity of that, but I'm usually just on my home range anyway. For my Spencer, I use a Blakeslee box, which I find to be really convenient.
For my smaller revolvers, I'm kind of stuck, hence the original question. I prefer a somewhat historical method, but I only have to satisfy myself. As I said, I didn't know which forum to use and just picked this one. I'm going to buy a CW cap pouch (with no US embossing) and try it out. At this point, it will be mainly for my .44 Colt RM conversion and I think that's appropriate. That way, if I DO wear it out in public or to an NCOWS match or something, maybe I'll fit in.
Thanks again, fellas. I have really appreciated all of the comments.
CC Griff