FreeMe, I actually am pretty convinced that the upper potential of the 10mm is probably superior to the upper potential of the .45 ACP all things being equal (barrel length, etc.).
Is your purpose defense against large bears? If so, and you want an auto pistol, then 10mm is probably your best bet, with the most appropriate loads. I was simply saying that, with the best loads possible, the .45 is not much inferior, thus bringing into question the necessity for the 10mms introduction as a sporting round, when .45 ACP is already well established. Necessity, of course, is a subjective matter.
PS As a general issue law enforcement round, it was ridiculous, which is now generally agreed upon.
