Shot a couple hundred rounds of the converted 40s&w brass rounds with Hornady 124 XTP’s and they cycle flawlessly, Ran the CFE Pistol with Berry FT 124 Thick plated and 800X loads with 124XTP. Had 2 rounds that did not fire with primer strikes and both were Win WSP , every Fed ? went boom ?! As far as accuracy... Matt was ringing Steel at 376 yards with a load using 9.1gr of 800X. I even hit steel at 250 yards. The loads with 9.2gr , 9.3gr & 9.4gr of 800X are stout but not hot . I only used up 5 rounds of SD Ammo I let someone shoot, I probably had 250 to 300 rounds go through the G31 over the weekend. And just 1 box of 357sig brass ammunition and 5 SD rounds. I am very pleased with the formula and process of this 357sig load developement.