Zero Distance for my AR

first off - without chronographing the load in YOUR barrel, everything else is just a WAG. accuracy matters!

once you have solid numbers then plug into a balistic app/calculator like strelok or hornady and as noted do some verification testing.


the optic over bore height is critical, so dont just guess there either.


always remember these calculators/apps are just doing math for you, so the term garbage in = garbage out is exactly what you can expect if you start estimating values. be as precise as your tools and equipment allow you to be!
 
Sight in or zero at 25m(27yds) and you will be on again at 250m(273yds). Military has been doing it for years. That applies to 55gr and 62gr.If you can find the military ar targets, they help alot.
 
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