Simpson fired prone, using a Harris bipod, and supported the butt of his rifle with a rubber-armored binocular. Petzal used a sling from prone at 100 and 200, then rested his rifle over a pack, prone, from 300 and 400. Boddington shot from sitting and prone with a hasty sling, then prone with a pack. I shot prone with a sling at all distances. The wind that day swung from four to eight o'clock, at 5 to 10 mph.