Merry Christmas to all!
Chip, I've found that half a blade of lead on moving targets with the M1A wide blade is often more than enough at about 300 yards or so. Obviously that depends on a lot, but I prefer when using irons to figure out how much of the blade, IE it might the the full left or right side and go from there, once have that in my head I can just continue to trophy trigger the gun like it was a rattle battle match.
