I like that idea Brent. Since I shoot flintlock (not caps), my pan flash would have to be taken into consideration too. Plus.. at my range, we have a rule that only the gun you are shooting, and the ammo that it takes can be on the table at the firing line. Everything else needs to sit on a table behind the firing line.
Now they tend to overlook that a bit for muzzleloaders (I've only seen one other muzzleloader there, and he's the guy in the mirror). I tend to have a leather bag with round balls on the shooting table, a brass ram rod, priming power, patches, and cleaning patches spread around my table. That's a terrible disorganization that I'd like to amend, so I'm hoping to be able to have a loading bloc for the pistol that's built into a box that holds the other stuff....