I can't speak for .357 brass (I do 9, .38, and .45), but I've found that buying brass at retail is rarely a good deal. It seems rather expensive for what it is. By the time you add the cost of the other components, you've just about paid as much as manufactured ammo. If I need brass that I can't harvest at the range, I buy a couple boxes of the desired type of ammo and keep the brass after I shoot it.