I have an 8" wide by 6" high double bag that is pretty much just for squirrel hunting ( or whatever else my .32 flint longrifle asks me to chase after). I find it perfectly up to the task. However, it means that I cannot carry too many items in it. Since the .32 is stingy on powder and lead, a small powder flask carries plenty of powder, and even 20 balls are way more than I would need for a day or two. A "short" short starter. and a powder measure completes the front pouch. In the back are some cleaning patches and a small rag, a few spare flints, some string to make a "stringer" for dead squirrels if it's a good day, 2 steel "S" hooks (great for crossing a fence and avoiding the barbs), and a couple of ramrod accessories. Water and lunch and anything else goes in a separate satchel. But if the urge hits, I can grab a bag and a rifle and be out the door in a hurry.