Yes it can. Zero at 16, check at 31. If you zero at 31, is that the first or second time the pellet is crossing the line of sight?
Another way to check without having to rezero you gun, is to check your chart. On strelok my sight in is 50 for my U2 700. But if I put that my distance is 25yds it shows the hold is the same.
This is all based on data entered into a program, so the output is only as good as the data input. I hate to say it, but the only way to know is to test it, and not just at those two ranges but at all ranges.
Yes, and then we have the real life variables like the weather changes throughout the day (which can be pretty dramatic here), I live at 9,000' ASL, using springers, which aren't the best guns to be using at high altitudes -- all these factors significantly affect POI. I have to chrony and zero in what seems like average conditions, and live with, or adjust to, the variations.
Just remember that it says optimal, but you don’t have to. If you zero where you want to, you are more than likely just going to have a separate “dual-zero”. In the end, the only thing that really matters is that you have accurate dope and that you have enough room for dialing or holdovers.
It's never really mattered to me in the past, either. Except now I'm moving from an HW97K that was getting 810 fps to a ProSport that gets 720 fps up here at this insane altitude, and I miss that flatter trajectory, and the extended useful range where I don't have to hold over or under to make good, clean, ethical kills.
