I have 130gr BST's for my Ruger M77 270 WIN and i have loaded them over 59gr's of 4831SC. This gun has been very accurate with anything I have loaded in it before but this is the first time I have used either this bullet or this powder. I am getting very erratic grouping. Do you think it is over loaded? Do I need to reduce the loading because of the short cut powder? Hodgdon says that 60 is max with regular 4831 but I was curios if the short cut packs better for a denser charge? 59gr should be 59gr right?? Any help would be great I have heard great things about this combo and would love to make it work for me.