Originally Posted by
Derek_Connor
Assuming its a 16inch barrel, with average sight over bore height (for an AR15), and pushing approx 3100fps with a 55grain projectile:
Here are the paths for a 25,50,100 yard zero, choose which one is more applicable to your use and go for it:
Red = 25 Yard Zero_____________________Green = 50 Yard Zero____________________Blue = 100 Yard Zero
Greetings from south Looziana.
Here be a complete newbie to ARs who is struggling to understand the 'backside' of several of the charts in this five star go-to-school-thread. To date I've attended one single full day carbine course at Elite Arms Training in Lumberton, Mississippi with a loaner Bushmaster which I fired for look-n-feel at a local range for approximately two hours several days before traveling to school, spent many hours reading several excellent forums, and have recently taken possession of my first personal AR, a Daniel Defense M4. Without doubt the BRD bug has bitten me hard.
Until today I was clearly of the impression that an outbound 25 m zero would reacquire the zero mark approximately 300 meters out, pending round specs and external variables. I'm confused because I do not see anything approximating that relationship in the most of the ballistic charts in this thread. What am I missing? Send help.
Thanks,
Michael, a/k/a Doc
Non immemor beneficii / Crom a boo / Islam delenda est
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