Wind doesn’t have a meaningful effect on the trajectory of a 5.56 at 200 yards or less. That is why in the Marine Corps, there is no dope change for wind at that distance— because any change would be less than 1/4 Minutes of Angle that the rifle’s sights are mechanically designed to move the strike of the round.
He either had a poorly sighted rifle, or he anticipated the shot by pushing his shoulder forward into the stock, or both.
Either way, a 150 yard shot from a prone position is ridiculously easy, even without a scope.
Coulda been simple trigger finger pull/push. I cant remember which way it makes your round strike but buck fever can pull you off of a shot that far at least.
Right hand shooter let of center?
Left hand shooter right of center?
Pulling or pushing the trigger?
I cant remember because I fixed that problem over 40 years ago.
Agree