I don't use wads in my 45 70 either. 59 gr. 2F compressed by a hollow base 405 gr. bullet. I have not used the 500 gr. bullet yet. In my 50 70 I use 70 gr 2F , compressed with a card wad then a 515 diameter 450 gr. bullet. Just trying to find a wad that will help keep the bore somewhat cleaner.