i recently bought some of the wolfe or herters ammo basically just for releiving my itchy finger. after shooting several round i had some that did not want to extract so i stopped shooting them in that gun, it is a H&R single shot 223, i figured it might just be dirty and not wanting to eject properly. then i bought a new gun it is a stevens bolt action in 223 also so i figured i would shoot these rounds in that gun i soon noticed that the bolt was a little hard to release, so again i stopped using those rounds. well after pulling the bullets i found that of the 4 i had leftover none had the same charge wieght and the 55gr bullets were more like 57 to 57.5. so i saved the powder and bullets in a container for later use if i could some how identify the powder. if not it is really no big deal to dispose of it . also i decided to weigh some of my sierra bullets to see if they too were not all the same weight but to no surprise they were exactly what the box said they were. so can anybody tell me what powder they use in this ammo?