Another thing that works well for me while deer hunting, is to use a small
"trout fly" type, double sided poly box... vest pocket size. On one side keep bullets and powder. (I cut down the tubes, that pellets that I once used came in, so that they hold 90gr. 777). On the other side I keep
primers in holders, and accessories, eg: pick,small knife. For hunting you have everything needed for about 5 shots, in a 4x6x1.5" box.
Oh, another benefit in using Powerbelts, is that you never have to worry about snapping the brass extending rod, jamin' bullets down the muzzle.