Thanks for all the helpful replies. I measured the barrel on my Cimarron and its closer to 7 1/4 - 7 1/2" inches long. 8" if you measure from the forcing cone. Turns out dads Colt Python is a 6" not 8"
I made calls to several of your suggestions and spoke with an associate at Hunter Holsters who was very friendly and I ended up buying their Sportsman Bandoleer Holsters which he had in stock and ready to ship for both revolvers. They sit lower and off to the side (somewhat cross-draw as he explained it) compared to typical chest rigs which I think will be ideal because dad likes to fish in gator territory and it'll be out of his way while doing that. I plan to carry binoculars in a chest rig while backpacking so I think its going to work out great for me too. Thanks, again.
