I went to this site
http://www.armysurplusworld.com/disp...partmentID=118 and found a myriad of ammo can sizes.
They are as follows:
30 cal = 10.5" x 4" x 7"
50 cal = 12" x 6" x 7.5"
Saw Box = 12" x 6.75" x 8.5"
25mm = 12.5" x 5.5" x 14"
20mm = 17" x 7" x 15"
30mm = 18.5" x 9.5" x 14.5"
Looks like you can get just about any size you want. Does anyone have any thoughts what size will fit the best?