Well think I found rite speed for slaps in my p3 & hm1000x! P3 reg set at 130 ,speed 980-1000fps. Got my first 1” group at 100yrds! Zeroed my scope at 35yrds and less than 1/4”, at the distance. Also I clean slugs and lubed them. The raw, I cleaned barrel before we went. And after 4 mags finally...