I do not reload so the only ammo I have is what I buy. I have a new Browning BLR in 300 WSM and cannot get it to shoot well with Winchester Super-X PowerPoint shells in 180 gr. I have a Burris Fulfield II 4.5-14 scope on it. I can't get better than about a 4 inch spread at 100 yards from a good rest. What are your experiences with this gun or these Winchester shells? What works well for you? Thanks.