I was shooting a 22-250 with 55 gr Sierra GK and Varget. I shot 2 ladders at 200 yards to test a small range of powder with a different primer. The previous primer (Rem 9 1/2) was about 200 fps slower than book and I wanted to see if a different primer (WLR) would increase velocity and not disturb the node. Their was virtually no wind. In the 1st ladder, shots 4 and 5 were 3/16" apart (center to center) with no vertical spread and about 1" to the right of the target. In the 2nd ladder, shots 4 and 5 were 3/8" apart (center to center) with 1/8" vertical spread and about 1/2" to the left of the target. So my question is with shots 4 and 5 so being so close in both ladders, what does it mean when in the 1st ladder they were an inch right and in the 2nd ladder they were 1/2" left of the target???