Cool box! Why were they for "Single Loading Only"? Too long to fit in the magazine?
I've no idea. There was a thread on here back in spring about ammo boxes. I snapped three pics of some of the boxes I have and posted those. I have other shot shell, rimfire, rifle, slug boxes. Cool history. I have other old powder cans, magazine ad artwork, several duck decoys I still have after I sold a bunch.