csbelew

Personally, I would use up what you got of the 125's then your next batch start buying 145's/147's I think you will like the way they shoot.

I spent some more time on the 103 bullets. I loaded them to 4.0 grains and put them through the chrono with my PCC. I ended up at 127 power factor. They were still soft shooting and very accurate. This will now be my load for anything PCC.

I'd like to share my results loading 9mm with Sport Pistol. My goal is to make USPSA minor power factor legal loads and super light loads for steel challenge for my pistols and my PCC. I started out with DWBSig's data and have been working from there. I had been using Titegroup and 231. The Titegroup I didn't like, to snappy. The 231 shot well but was smoky and dirty. Sport Pistol feels similar to 231 to me, but I am able to get the same or better velocities with less powder, and it is cleaner, not totally smokeless but close. For comparison, using 3.7 grains of 231 in the Sig 226 got me 128 power factor. I made up some test loads and only tested for velocity. I tested 103 grain and 147 grain poly coated bullets that a local guy makes. They are sized to .356 after coating. I shoot USPSA, Steel Challenge and various other outlaw USPSA style matches. I use a Dillon 650 press. 103 grain Truncated Cone Poly coated bullet mixed range pickup brass CCI 500 primers 1.090 OAL M&P 9L Performance with Vortex Venom Red Dot, 5" stock non ported barrel 13# IMSI recoil spring on stock guide rod 3.2 grains 757/770/789 FPS 80 Power Factor FAILED 3.4 grains 826/840/836 FPS 86 Power Factor FAILED 3.6 grains 983/951/957 FPS 100 Power Factor Functioned but barely Sig 226 4.5" barrel stock recoil spring, stock guide rod 3.2 grains 816/855/821 FPS 85 Power Factor FAILED 3.4 grains 863/859/848 FPS 88 Power Factor FAILED 3.6 grains 967/969/985 FPS 100 Power Factor Functioned but barely Palmetto State Armory PCC 16" barrel Blitzkrieg buffer with .308 carbine length spring and a 1" tall flat wound wave spring 3.2 grains 1059/988/988 FPS 104 Power Factor 3.4 grains 1066/1056/1049 FPS 108 Power Factor 3.6 grains 1100/1123/1142 FPS 115 Power Factor All these loads shot incredibly soft, reliable and will be great for steel challenge 147 grain Round Nose Poly coated bullet mixed range pickup brass CCI 500 primers 1.125 OAL M&P 9L Performance with Vortex Venom Red Dot, 5" stock non ported barrel 13# IMSI recoil spring on stock guide rod 3.2 grains 898/897/882 FPS 131 Power Factor This is now my go to load for USPSA 3.4 grains 920/913/905 FPS 134 Power Factor 3.6 grains 958/947/943 FPS 139 Power Factor Sig 226 4.5" barrel stock recoil spring, stock guide rod 3.2 grains 865/866/861 FPS 127 Power Factor 3.4 grains 895/900/893 FPS 131 Power Factor 3.6 grains 937/951/942 FPS 138 Power Factor Palmetto State Armory PCC 16" barrel, Blitzkrieg buffer with a .308 carbine length spring and a 1" tall flat wound wave spring 3.2 grains 1013/1014/976 FPS 147 Power Factor 3.4 grains 1051/1041/1057 FPS 154 Power Factor 3.6 grains 1082/1087/1091 FPS 159 Power Factor These loads while hotter then the 103's still feel good and shoot well. I plan to further develop the 103 grain bullet loads for the PCC for when I need to make minor power factor. I hope this info helps someone out. If you have questions, please ask. I am new to this but will do my best to answer.