Rich,
some years ago the late Hugh C. talked with me about a 22/30 Luger. He referred to it as the 22 Lowenstein, guy from San Fran area maybe..?
So being the new kid on the block, I had a Lee 30 Luger die modified by Christensen for a bushing top. Played with the bushing die a little, but my confidence level at the time was not up to doing a converted Luger.
Hugh offered me a Luger barrel in the caliber above with some brass, not sure about the dies anymore, but I had to decline. Somewhat to my regret today but time goes on. I was still in the trying to not screw up basic threading at the time.
Hugh and I talked about about zip to move the toggle like it should, and both had some reservations about making a 22/30 Luger repeater work well, versus beating the toggle to death. Maybe some of the newer powders of today along with a heavier bullet might help that some.
I notice the barrel is fairly petite, one way to get around the above issue. With the pistol shown saying working..........gives new hope to me at least. I have always thought it could be done, but one might have to make some concessions.
I have spare 30 Luger reamers that could be reground by PTG for a 22 front; just something for me to ponder. One would suspect that sizing dies, ala bushing could be made up from scratch to do the shoulder and necking procedure..........maybe then use a full length 30 Luger sizer to do the body????. Two respective reamers (chamber/full length sizer)are a fair investment nowadays from PTG. There are ways to use a chamber reamer with specialized materials, ie the cavity gets smaller with procedures after reaming, but kinda advanced for a stone cutter like me.
I have always dreamed about one of these 22, 24, or 25 bullets on a 30 Luger in the Luger pistol. If one liked the 30 because of the way it carried out to the target, then the 22 might be more better.
Sounds like a project for you huh?...............