So I was gearing up today at one of the airstrips and picked up an ammo can. Well we all know there are 10 slots in the ammo can that hold 30 rounds of 5.56 each. Well I also happened to find one of those double magazines with 60 rounds. When I emptied the magazine they showed up in my inventory as a stack of 60. I put the stack of 60 into ONE SLOT in the ammo can. So, to make sure it wasn't a one time deal I filled up the double magazine again with 60 rounds, emptied it into one stack of 60 into my inventory and transferred it as a stack of 60 into a second slot in the ammo can. Lather, rinse, repeat 8 more times and I have 600 rounds of 5.56 in a 300 round ammo can. For those of you who can't get enough ammo it will help.