The human head subtends about 6 arcminutes at 130 yards, or one tenth of a degree. The resolution of the human eye is about 1 arcminute. Soldiers in basic training shoot (or shot) at “man sized” targets and are trained to shoot center of mass. Ballistic accuracy of a AR-15 “style” rifle at 100 yards, without wind, is about 1 arcminute, comparable to the resolution of the Mark-I eyeball. A basic training target at 100 meters subtends about one degree, or 10 head-widths, center mass. In my day, the iron sights on an M-16 were “zeroed” for ballistic drop at 200 meters, the typical distance of an infantry engagement. I believe we had one 400 meter target (I hit mine, the lag between firing and the target dropping is very perceivable.)
I do not think that a head shot at 130 yards is a gimme. Not a six inch putt, but not a Hail Mary from full court, either. I think Crooks’s results are consistent with what I would expect from a person with his experience and training.
“I do not think that a head shot at 130 yards is a gimme.”
Anyone who shoots at 100 and farther knows 100 is a warm up shot. All your googling for crap to sound knowledgeable is just nerd ignorance on display.