Will you be hunting with the 10mm? Will you be carrying a rifle? A buddy and I had custom leather holsters made for our large handguns for grizzly country. We wear them scouting for sheep or goats and are in grizzly territory. One day we saw 9 different grizz. One is a .500 S&W, the other a .454 Cassull. Note the layers of pack, holster, bino and bear spray. The holsters were made by Ringler Leather out of Clark, WY. They are hand made and will last a lifetime or more. After this one, I put a scope on the .500 and got a holster for that as well.