Yeah, that's the one I loaned to my son, on the left. Note the black thingie on the top of the press. That's the adaptor to bring it down to 7/8 x 14 for regular dies. (Incidentally, for those having interest, 7/8 X 14 is a standard pipe thread, except not tapered.)
I'm disappointed to hear that your Partner press broke on .308s. I was planning on loading 7.62 X 54R with mine. Was that with trying to resize military brass?
As far as I know, I "invented" making .243 bullets out of .22 Mag cases back in '78 or '79 or so, I guess.
But I guess it would be obvious to anyone who has a 6mm rifle (mine was .243 Win) and happened to take a micrometer to .22 Mag cases. Had my own machine shop, made my own dies and core molds for the process. I went only so far as to determine whether it was possible or not, and I made ~15-20 bullets without going further to refine the process. Results were pretty mediocre, to tell you the truth.
The whole project was borne of my long-standing philosophy that small-arms technology should not reside solely with Big Companies and The Government, but should be in the hands of ordinary mortals such as thee and me.
Nowadays, though, that old philosophy of mine is more wishful thinking than anything else.
Terry, 230RN