I would like to make it quite clear from the start that I am in no way having a go at anybody here. I am just trying to gain a little knowledge. The touchy subject that I wish to acquire knowledge on is Head shooting.
I have never really worried about it much, I have only ever shot 2 deer in the head, both of these being the only shot available, and one was on a youngster that had just lost it's mother. Thinking back on these shots and the placement involved, all I can say is one was through the back of the head, and the other was through it's ear on the way in and left the other side just below its ear.
The other day sanderj89 was describing his first outing with his new gun, and how pleased he was, he was getting 2 inch groups. I replied along the lines that 2 inches was good enough for hunting, and how nice it was to hear from someone who was happy with the groups even though they were not microscopic. buckup chimed in and agreed that under normal circumstances 2 inches was good enough but, under the circumstances he had been operating in, culling deer in a park which had to be head shot, 2 inches would not do. Well never having been in this situation, I could offer no opinion. Other than a light hearted one about pin headed deer
I was thinking about this and then started to get scientific about it. I made a circle by touching the end of my thumb with the end of my index finger, which formed a 2 inch'ish circle. Now if this is considered not good enough for headshooting a deer, what is? You see if it was me and I knew that I could put it on target within a 2 inch circle, then I think that I would have no hesitation in pulling the trigger. Having said that, what do I know, I have never been in the position where I had to head shoot only.
So, my question is what is the accepted accuracy considered to be essential for headshooting deer?