Hodgdon   Longshot
6.5gr   1,277fps   27,900 PSI   

Winchester   AutoComp   
5.8gr   1,329fps   32,700 PSI   

Hogdon has 6.5 gr of longshot at 1.125 oal at only 27K psi. Auotcomp is at 32k psi with only 5.8gr. That buffalo bore is loaded extremely hot if they are using almost 7gr of autocomp with that long bullet at 1.11 OAL. I wonder which is actually the better powder at +p+ pressures. (AROUND 40K psi)

any particular reason why the shell shock cases are not good? I was thinking of buying them to do loads approaching 356 tsw pressures from a Glock with an aftermarket barrel. I could just rechamber a barrel to 356 but the brass is so hard to find. I was thinking of using a 95gr Barnes bullet with a compensated Glock as this light bullet would provide much recoil and the extra gas would feed well the compensator. Maybe get them up to 1500 fps from a 4 inch barrel. 356 pushes 115gr bullet over 1500fps from a glock 19. These light for caliber Barnes bullets like their 125gr version in 10mm penetrate a little deeper the harder they are pushed as the pedals fold back on themselves leaving you with an explosive and controllable round. But again their weakness is that the extra length creates large pressures.

Thank you for the clarification. I really like schp for their performance but the biggest downside its the amount of room they take up. So in theory if i had a strong enough case could I compensate by adding the pressure to match the performance of a shorter bullet of the same grain weight?

I was thinking about the shell shock cases in 9mm. They have a larger case capacity than standard brass and have a pressure rating of 65k psi. A 50k psi version of this in 10mm would eclipse the 40k psi 460 Rowland. I think it possible since there are handgun cartridges' like the 9x23, 356 tsw, and 30 supper carry that have an over 50k psi rating and work fine in standard semi auto pistols. Any thoughts?

im looking for a replacement for 800-x (now discontinued) powder since this worked the best and got 1500fps out of a G29. Ive seen test with longshot and they are underwhelming and Power pistol also. Liking at hodgdon reloading center they have data for a 120gr schp that is even longer than the barnes 125gr. The best powdered that performed there was cfe pistol. Additionally the 140gr barnes did best with CFE. Any suggestions? im using a g29

Im thinking of doing a very similar load with autocomp since i have a p365x macro with a compensator. Autocomp powder is designed with a large amount of gas to keep the muzzle down and the light bullet would be very fast and light recoil. The only thing is that these bullets are really long. Do you think something like 1.160 or 1.150 would work fine so i can add more powder and keep the pressure down?