I find it gives me the best price to buy BH by the case from powder valley since I use about that much a year or a bit more it works well for me. I realize that some one who only uses a can a year would be better off buying by the can.
One of the other things I have come to realize is that once you establish your loads and the newness of not having to swab wares off that you really don't shoot a lot more. When you get the right wad pressure and the right sabot for you climate worked out or as I have to switch sabots when the temperature runs above 75 things can get very consistent.