I just got 2000 Berry's 115 Grain 9mm bullets. I have some new starline brass to load them into. I have successfully loaded right at a thousand .45 ACP rounds. No explosions or other problems. I have loaded about 500 44 Magnums as well with equal success. So now I will embark on the .357 Sig challenge. Im a little worried that it won't go as smoothly. I read about alot of problems. What is a good powder for this application? I have some Power Pistol, Unique, Blue Dot, and a bunch of others I havent gone through. Are any of these suitable? I will be shooting them from a Glock 33 (Bye bye warranty) I just need some starting advice on working up these loads. I have researched alot about reloading this caliber so Im not going into it blind. I just want as much info as possible before I ease into it.