Well, I knew some 9mm folks were likely to get ruffled when they found a ctg. which whipped it on all levels...but did ya think it would come sooner or later?
You mean like the 9x23 Winchester, the .38Super and others? Your cartridge is not the first .355/.357 caliber straight-walled auto-pistol cartridge that exceeds 9mm Luger performance. The .38 Super is going on 90 years old and the 9x23 Winchester has been around for about 2 decades. Both were developed in the U.S.
The other things about 38 super and 9x23, these are also fine, but there may be times when a heavier bullet is needed...thus I see a need for this cartridge.
A heavier bullet than what? Either cartridge can handle 158gr bullets although loading data isn't that common with bullets that heavy. I suppose you could load them with heavier bullets than that, but given that even in .357Mag, bullets heavier than 158/160grs aren't very common, I'm not sure what rationale there could be for such a gambit.
The nines generally required more than one shot to make more than one hole in an attacker to stop someone determined or doped up. The 357 does this with one shot generally.
To the extent that the .357Mag developed a reputation as a one-shot stopper, it was primarily associated with bullets on the light end of the spectrum for the caliber--mostly the 125gr hollow points. That's why cartridge development for the .357SIG focused on duplicating .357Mag performance with that particular bullet weight.
When the wonder nines came out, it was found to be lacking, and the double tap concept came into being.
The double-tap technique is credited to Fairbairn & Sykes who are said to have developed the idea in the 1930s. The earliest popular proponent of the technique in the U.S. was Jeff Cooper, a dedicated .45ACP aficionado and NOT a fan of "wonder-nines". I can find nothing that suggests that the double-tap technique was the result of the introduction or popularization of "wonder-nine" pistols.
He took the 9mm Kurz and lengthened it to add more powder to make it more powerful.
Luger's original cartridge design was a bottle-necked cartridge which is commonly called the .30 Luger in the U.S. He changed it to the 9mm after the German military requested the larger caliber. There's no evidence that the 9mm Kurz (European name for the good old AMERICAN round developed by Browning and called the .380ACP) played any significant part in the development of the 9mm Luger.
Thanks for the info on the 9mm. I guess Wikipedia has it all wrong.
Nope, Wikipedia has it all right.
Wikipedia said:
Georg Luger developed the 9×19mm Parabellum cartridge from his earlier 7.65×21mm Parabellum round, which itself was derived from the original 7.65×25mm Borchardt cartridge in the Borchardt C-93 pistol. Shortening the length of the cartridge case used in the Borchardt pistol allowed him to improve the design of the toggle lock and to incorporate a smaller, angled grip. Luger's work on the Borchardt design evolved into the Luger pistol, first patented in 1898 and chambered in 7.65×21mm Parabellum. Demand for larger calibers in military sidearms led to Luger to develop the 9×19mm Parabellum cartridge for his new pistol. This was achieved by removing the bottleneck shape of the 7.65×21mm Parabellum case, resulting in a tapered rimless cartridge encasing a bullet that was 9mm in diameter.
Maybe you're a load development genius, on a par with Elmer Keith or P.O. Ackley, but even if that's true, it seems that you could benefit from a bit more solid background information on a number of the topics you've made statements or claims about. However, that's not a big deal. An idea can be a good one even if the person who comes up with it is not particularly well-informed and has misconceptions.
What could be a major issue is this statement you made:
I am checking each cartridge for signs of over pressure as I go along in small increments.
What sort of pressure signs do you expect to see in a straight-walled pistol cartridge and at what pressure levels would you expect them to appear?
You should stop your load development and do some research until you can provide a definitive answer to the above question. It could save you a lot of grief.
9x23 will do 1300 easy with a 147 I've shot many 150gr SWCs from my 38 super at 1100.