Leon - your memory serves you right on both counts. The “Flying Ashtray” was the Speer 200
Grain Hollowpoint, and it was a real jammer. The only load I ever shot in my Colt Commander, all throated,
etc., was that load.
Lew - I checked all my files where I might have had the information on that “Diamond” headstamp from
Super Vel, and had nothing on it, other that from GK whose sheet justs says a "contract headstamp."
It was one of the last, perhaps THE last, that they used.
I could have sworn that someone in IAA did a study of the Super Vel Headstamps. I thought it was
John Guenther, who did one on Smith and Wesson, but I could not find anything in the IAA
Journal Index for Super Vel that identified the case maker.
Sorry about that.