Excellent shooting. That must be some tough paint! Not much splash for a 300 WM hit. Here are 1000 yard groups I shot over Memorial weekend from 2 different 260 rem rifles. The 2 hits far left were my first two shots from my CTR. I adjusted some then shot the 3 shot group below the bull. I switched to my target 260 and shot the 3 shot group just right of the bull with my first dial. 24 inch target with a roughly 2 inch bull. This target was painted with marking paint.
And a view through the spotting scope at 1000 yards.