Just to put a bow on this thread, this is what I selected for our use case.
Buy The BH5 Hunting Bandolier Rig – Designed for all Double and Single actions revolvers including the .460 Casull and 500 Magnum and all large caliber handguns
www.blackhillsleather.com
It doesn't look very comfortable for a hunting holster because it doesn't have a three point harness. It does look like it will work perfectly for any member of the family to grab it, throw it over the shoulder with the e-collar, and take the dog for an off leash walk on our land. Perfect for leaving on a post while working in the garden or orchard in case human-wildlife conflict occurs.
Thank you to all of you for brainstorming on the process with me.
If I was to hunt or fly fish in backcountry with a sidearm, I suspect I would go with something that allows for a faster draw and that would sit higher and more centered on the chest.
The unrelated thing I'd point out is that Colt now makes two ideal back country stainless steel, weather resistant firearms and I'm not sure which is "best". I bought the Colt Kodiak, which is a 44mag, 4.25" anaconda with two differences: ported barrel to reduce recoil, and a non-fluted cylinder to add weight. The revolver weighs 48 ounces. This year they invented the Colt Grizzly, its a Colt Python with a 3" barrel in 357 magnum, again with the ported barrel and the non-fluted cylinder. I like the shorter length and milder recoil of the 357, but it weighs 41 ounces so its really not saving much in weight and the frame sizes are identical. Either way, perfect for someone that finds no pleasure in modern guns and has no intention of cleaning it, shooting it, or hopefully using it. (beyond practicing for familiarity) Both guns have a $100 colt rebate right now and EuroOptic has them for an unbeatable price.