powder for the 223
To answer your question intellegently, I would first need to know what kind of gun you are reloading for. I'm not trying to be an ass, but certain powders that are very accurate for that caliber would short stroke a bolt in an AR(H4198 comes to mind). If you are loading for a bolt action rifle then the field is wide open. Overall, varget is a great powder for any action type for bullets 60gr and up. If you are running lighter bullets through an AR (50-60gr) I would use AA2230,WIN 748 or H335. I have also heard good things about Ramshot Tac rifle for the Ar but haven't used any yet myself. If you really want to get your options narrowed down, I would list your twist rate, action type and prefered projectile weight to really nail down the best powder for what you are trying to achieve.