i got boone's gun in my inventory by going into a casino. since they take all weapons away i guess they game me his. i cant give it back to him and no ammo works for it (it says MCA where ammo type is) please help if you know how i can get it to work

Same here. If you drop the gun, it goes red, says "Steal" when you hover over it, but you can't actually pick it back up and Boone doesn't seem to care that it's laying at his feet. LAME.

do you know what MCA means/stands for?