Ammo is great fun until you need to move it. If you're like me you don't like hauling anymore junk around or having to dig ammo out of boxes at the range. The Cole-Tac brass bag makes this easy by allowing you to throw all your ammo in a heavy duty bag which you can then use to collect all your brass in afterwards. --yes, you should be collecting your brass if for no other reason than to bribe your buddies into buying you a burger after a day out. People will do anything for brass.