Yesterday I was a guest of David1976 at his pheasant shoot. The shoot captains brother had dies and he was disposing of some cartridge belts. One was left and as I was shooting 20 bore he gave it to me. The belt is the strangest I have ever seen. It is a normal 12 bore belt except that it has a zip along the top. This zip puts on a second tier of cartridge loops then the belt has two strips of cartridges. Only thing is this second row is twenty bore. Why would a cartridge belt have 12 and 20 bore on the same belt? The danger is plain to see. Any answers? Jim