Well, I didn't think I'd see such a pointed answer to the 380 comment on this board. I too think that may be a little light; but I'll wait and see. Personally, I'm not as sold on Corbon as a lot of folks. They don't seem to crimp their ammo too well from what I've experienced; and, I've noticed a few loads seem to have lower powder than other loads even within the same box. Perhaps their quality control has gotten better in the last 3 years, but for a while there, I didn't care for it and started using Hornady and ATK/Speer.
I'd like to see velocity out of the barrel for this new DPX round so I could determine energy for that load. While I never went with 230g out of my short barrel 45 strictly because I knew I'd be losing velocity, I never went to 165g or 180g either. I figured 200+P would be a good solution - this was long before Gold Dot short barrel came out for 45. Mass does have some advantages (at least that's what I tell myself when I go buy new pants
).
As for the short barrel ammo, most of it is not traveling fast at all. The main difference from what I've read (off the illustrious internet) is that, using Gold Dot for example, the bullet itself is designed to open at a lower velocity and the flash is less because they put a powder that burns completely in the short barrel length. Just go look at how slow a 45 Gold Dot short barrel is going....it'll shock you. Furthermore, for Speer's Short Barrel for 45 is 230g, NOT some lightweight bullet. So I guess Speer should only develop ammunition for old outdated 1911s.
That said in all seriousness, whatever one feels comfortable with and feeds reliably is what one should carry. I hardly believe the comment that was made was so out of line that he should go back to his 45 and leave the rest of us to carry real guns.