Jeff,
I always enjoy your posts. You have a nice collection of arms and are very knowledgeable.
Makes us think about the better mousetrap. Can we -yes, should we -sometimes not. Thats how wild-catting works. If something can be improved humans tend to tinker. Sometimes it actually catches on and gets adopted in the Saami hall of fame.
I prefer the 45acp as is. 100 plus years of R&D has already been done. Its a fun round, reasonably light recoil and accurate. Easy to reload for. Put that together in a 1911 and the rest is history.
Reminds me of the 17MM Mufuh cartride. Why? Hunting an entire Elephant herd with a single bullet? Somebody built that mousetrap.
Everyone has choices. Have fun and most of all be safe. Have a sense of humor.