Of course its on the AR-15 website so it just must be true!!! I have no idea what ammunition he was supposedly using however I just use a 50 meter and will continue to do so as my brain is slow and old, but I can hit a baseball sized rock at 25 yards (dot goes on top) 50 (dot goes in center) 100 on a 3 inch red target (dot goes on bottom I cannot see a rock that good at 100) shooting off of a pine tree all without overthinking the situation nor having to learn Tactical speak.