
The point of this is that the 3 rifles above are all very different and all are zeroed the same BUT WHEN I DOPE THEM AT LONGER THAN 300 THE DIFFERENCE IS EVIDENT, BUT THAT IS NOT THE POINT.
Above is my Smith 16" 1/9 with Comp M2, my 16" 1/7 Spikes upper on a Seekins Lower, and my RRA 20" 1/9 Coyote with Zeiss 3x9x40. They all have a 37 yard Zero and all have the second point of zero at 300 yards. This will give you a 4MOA trajectory out to 300 so a dead hold is always a kill shot. I shoot a 55 in the smith, a 53 VMAX in the 20", and a 75 TAPFD in the Spikes 1/7. All have the same zero and all give me a 4MOA trajectory out to 300 yards. I have over 1000 rds Through the Smith, 2000 through the RRA, and I just Zeroed My new build today the same. What I am getting at is a 37 Yard zero for most people is simple and you always have a dead center hold and always dope for your wind. Of the 21 Competition AR-15's I have %90 are Aimpoint Comp M2 and M4 with 2MOA dot and a 37 yard zero. The scopes are all 37 yard zero and I know hope to dope the weapon because I average at least 1000 rds a year from every weapon. As long as the zero and the Round you zero is used with the specified barrel, then this is too simple and effective to get complicated. I shoot out to 800 and that took 16 rds from the 1 shot out of the 24" .936 1/8 upper using a 75 gr Hornady TAPFD.
Please post ant feedback and disagreements you may haave