Pete;
I think I have gained more from your "Classes" than you have from mine, so tuition has been paid in full. I had totally forgotten that 9.3x72R Sauer till you mentioned it. A bottleneck case as I recall having more potential than the more common straight tapered one. Not sure, but quite possibly the inspiration for the still slightly larger & much more powerful 9.3x74R.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra