I was shooting at the club I belong to, which has an indoor range. After firing 100 rounds of .22 (CCI Standard Velocity) and 90 rounds of .45 (185 gr LSWC, 3.9 gr W231), I picked up my .45 brass and then swept up the .22. In using the broom, I noticed that I was also sweeping up quite a lot of unburned powder with the brass. It's hard to say exactly how much; maybe 10 grains worth? I know it was unburned because I lit some of it and sure enough, it burned.
Is this unusual, or normal? Now, had this been an outdoor range I would of course never have even seen the powder. I use a mild load, as indicated, which cycles flawlessly in my Series 70 Gold Cup National Match, and have no evidence of bullet setback or other problems. Unfortunately, I don't have a micrometer, so I can't measure the crimp I'm using if that might be a question. The bullets do seem firmly seated. I use Winchester large pistol primers.
Opinions? And thanks!
Is this unusual, or normal? Now, had this been an outdoor range I would of course never have even seen the powder. I use a mild load, as indicated, which cycles flawlessly in my Series 70 Gold Cup National Match, and have no evidence of bullet setback or other problems. Unfortunately, I don't have a micrometer, so I can't measure the crimp I'm using if that might be a question. The bullets do seem firmly seated. I use Winchester large pistol primers.
Opinions? And thanks!