One thing I'm trying to understand about the chart: it shows .22lr as having zero drop at 100 yards. I can't think of any .22lr ammo I've shot that would have zero drop at 100 yards. Am I missing something, or does Al have a typo in his chart?
Oh never mind, I see he's saying that it was ZEROED at 100 yards, so that all ammo types would have a baseline of zero drop at 100 yards, as a starting point for comparison. I guess the point was to see how all ammo types dropped off AFTER 100 yards, having been zeroed at 100 yards.