Doubs43, you must be a real .45 Colt fan. When the changeover from blackpowder to smokeless in the .45 Colt occurred, we'll probably never know. Along with the changeover, somewhere, they discontinued using balloon head cases, thus reducing the capacity of the .45 Colt case. This has made loading it to the same potential WITH black powder not an easy task for the cowboy/blackpowder shooters. I like to think that somewhere, between 1927 and 1929, the .45 Colt lost some pizazz, and the advertising claims by Colt that the new Super .38 had, indeed, some basis. Can you prove that those claims were false? Probably no more than I can prove it to be true. But, I can say, I really don't care one way or the other. I just like the Super .38, and oh, I like the .45 Colt, too!