I tried some of Missouri Bullet Company's 9mm swc 125 grain hi-tek coated with win 231 in my relatively stock hipower. These are some pretty and consistent appearing bullets, definitely nicer then my hobbyist needs. The hipower has stock springs... well maybe they should be replaced, it was an AIM Israeli surplus pistol. I can't recall if they have been replaced yet or not. I liked the bullets, I generally prefer SWC's. The pretty holes definitely saved a "B" scoring hit moving it to an "A" because of the nice full circumference hole it cut in the uspsa target. I think a round nose would have cut a smaller jagged lower scoring hole only in the B zone.
These were each with win231, 1.055 seating depth, mix range pickup cases. Chrono was about 3 paces out. I only have data for shots the chrono picked up, so the sample sizes aren't great. I wanted to shoot some of the rounds for accuracy, not just all of them over the chrono, and it was missing some shots that day.
3.8 grns / ES 10 / Standard Deviation 7.1 / Average 1026 / (2 shots) 1021, 1031
4.0 grns / ES 67 / Standard Deviation 24.4 / Average 1040.7 / (6 shots) 1079, 1027, 1033, 1033, 1060, 1012
4.2 grns / ES 23 / Standard Deviation 10.6 / Average 1098.3 / (4 shots) 1089, 1101, 1112, 1091
Despite the numbers I shot my best accuracy with the 4.0 load, noticeable less recoil with 3.8, and 4.2 is kind of on the hairy edge of over max (depending on where you think coated bullets should be loaded at, and whose data source) so I wasn't interested in producing a large quantity of the 4.2 load through a potentially finicky volumetric dispenser for a pistol not rated for +P rounds.
For sake of comparison: the same pistol shot hornady's xtp "american" 115 grain for an average 1143.8 fps (ES 49, SD 15.2) 10 shot sample size, and factory blazer 115 grain 1181.9 fps (ES 23, SD 7.9) 7 shot sample size.
These were each with win231, 1.055 seating depth, mix range pickup cases. Chrono was about 3 paces out. I only have data for shots the chrono picked up, so the sample sizes aren't great. I wanted to shoot some of the rounds for accuracy, not just all of them over the chrono, and it was missing some shots that day.
3.8 grns / ES 10 / Standard Deviation 7.1 / Average 1026 / (2 shots) 1021, 1031
4.0 grns / ES 67 / Standard Deviation 24.4 / Average 1040.7 / (6 shots) 1079, 1027, 1033, 1033, 1060, 1012
4.2 grns / ES 23 / Standard Deviation 10.6 / Average 1098.3 / (4 shots) 1089, 1101, 1112, 1091
Despite the numbers I shot my best accuracy with the 4.0 load, noticeable less recoil with 3.8, and 4.2 is kind of on the hairy edge of over max (depending on where you think coated bullets should be loaded at, and whose data source) so I wasn't interested in producing a large quantity of the 4.2 load through a potentially finicky volumetric dispenser for a pistol not rated for +P rounds.
For sake of comparison: the same pistol shot hornady's xtp "american" 115 grain for an average 1143.8 fps (ES 49, SD 15.2) 10 shot sample size, and factory blazer 115 grain 1181.9 fps (ES 23, SD 7.9) 7 shot sample size.
