I have loaded many rounds of pistol ammo with titegroup since the late 90's. Much of my loading was .45 acp with cast bullets, which are plenty smoky on their own. I do not like cast in the 9mm. I also observe stains on the outside of my brass in the 9mm and the 40 S&W, even with Plated or jacketed bullets. No discernible smoke from the muzzle, but black stains on the case by the mouth, and I load closer to the top of the range than the bottom. I generally always have a chrono handy and the velocity is right where the load would anticipate. I think that is just a characteristic of that powder. The performance and accuracy is fine.
Maybe it has to do with the higher flash temperature, maybe something else. I would not worry, that staining does not hurt anything. The cleanest burning powders were from VitaVouri. Of course at double the price and spotty availability I just stuck with Titegroup and threw the brass in the tumbler.
Maybe it has to do with the higher flash temperature, maybe something else. I would not worry, that staining does not hurt anything. The cleanest burning powders were from VitaVouri. Of course at double the price and spotty availability I just stuck with Titegroup and threw the brass in the tumbler.