I've been trying to get into BP rifle shooting, I was thinking of maybe putting extra caps in an Altoids Smalls metal can, maybe wrapped with a cotton cloth to pad them somewhat; Is that a decent answer or are there better ways? Buying a capper next time I order supplies, basically I have a few bits but will be getting the whole possibles bag set up. (Non static seems wise there so no nylon, probably leather. Harbor Freight welding apron as a leather source, or check Tandy leather ) I can deal with minor issues but would rather not have my caps all go off accidentally at once.