OldMtnMan:
You are spot on with this post.
If you want to carry a "flinter" to trail walks, club shoots or day hunting like I do part of the fun is doing it as close to the way it was done in the days your rifle portrays. First thing dump everything out of your bag and only put in what is required. Balls, patching material or pre-cut patches, (the pre-lubed go in your patch box). A patch knife on your bag or over your neck, a nipple pick, and a small leather pack for spare flints, flint leather, worm, jag, and turn screw. If you are not using spit patches and use oil or grease (like I do) a small or container for the oil or grease. Now once you see how much space is left in the bag you will see why the bags of old were much smaller than the ones most people carry. If you are portraying the "Mountain Man" of the Rockies they did carry more as there was no way to resupply if the pack mule got away. But for the most of us think "less is more". With the left over space a small cloth with some jerky rolled up in it would work for me, leave the snickers bar at home unless you have blood sugar issues.