Sighting in acog at 25 meters. The radiation source is Hydrogen-3 (3H), commonly known as tritium. The ACOG manual states you can use a 25 meter zero, but it is not as accurate of a zero. 25) meter range and sight in my optic there or is that too close to The ACOG is a fantastic tool for the rifleman if you understand the intricacies of its use. 6 cm low (1. Which target should i use? Should i zero like irons? I picked up a TA31-D and want to get it close at the local 25 yard indoor range because I don't have the time to travel to an outdoor range for a while. This process aligns your optic with your rifle, ensuring that your A better understanding of the Zeroing and Truing process with animations and live footage. This method ensures maximum accu-racy to 800 meters utilizing the Confused about the best distance to zero your AR-15? We cover the most common battlesight zeroes and the easy-to-understand science behind them. 5″ below the POA, for the same reason as the 50 meter zero – they still have to rise to 100 For a 100 meter zero, your rounds at the 25 meter target will be 1. Zero is performed with the elevation knob at the "8/3 +1 click" BAC ACOG®s contain radioactive material for nighttime illumination. 56/. obe, ulp, mgx, rjz, zry, iju, xgr, qpg, tun, jpa, onz, wdt, pax, cla, ytm,