I've had good luck using a six loop .44/.45 cartridge carrier on my belt, utilizing two cartridges per moon clip in the loops. I can cram three full moons next to each other, but two works a little easier. My six loop belt slide is leather, from El Paso Saddlery (bought out of their "blemished" bin while I was visiting the shop.) Also got the same gizmo in .38; it's for my 9mm moon clips.