Had a.327 small block in my 1967 Camaro, great engine, loved it.
.327 magnum, not so much. As mentioned great theory, just never lived up to its hype. Just like the. 30 super carry, it went up against 2, at least, well established giants with hundreds of handguns chambered and on the shelves in all manner of prices ranges. Never really stood a big chance.
Hmmm makes me wonder what ever happened to that guy, cannot remember his name, who had the worlds best handgun cartridge right on the brink of making obsolete every cartridge extant. He was here for about a month a year or two ago, anyone else remember him?