Looking for some help. I worked up a load for my SPS-V .308 and I think I found a good one with 44.1 grains of Varget, 178 A-max seated long at 2.234 to Ogive, .010 off the lands. Primer pockets uniformed, flash holes deburred, trimmed to 2.009 with once fired Hornady match brass. I shot two 5 shot groups at 500 yards and both were only 1.5 and 1.6 inches vertically but 4.7 and 4.8 horizontally. Wind was about 4 mph from 11 o'clock. Do you think it's the load? Or quite possibly just my shooting form needs help?