Well, the futher I dig into this mess I bought the more odd ball stuff I find. After the '7.62X33' cases I thought that's it but now I find some more I've never seen or heard of. How about some 30 carbine, loaded rounds that look like they have aluminum cases and no primer - just a stamped hole where the primer should be - not drilled through into the case. Only headstamp is a two-digit date. Any idea of what I have here?

trapper

Try a magnet on those cases. If they are not steel they are probably tinned brass and are dummies. Fairly common.

Ray