22 silhouette matches have targets at 40 meters, 60 meters, 77 meters, and 100 meters. In my experience with match rifles, shooters would puke with 2 inches at 109 yards, pretty Ok with 1.5 inches, and lottery winners if under an inch. Really with wind, things happen. Light changes, changes image perception, and groups move. Naturally these rough numbers are for bench work prior to offhand matches.
Typical zero at 40M, add 1.5-2 moa at 60, then add another 2 moa or so, then add 4 moa. 0, 2, 4 8. Maybe up to 10, depends on the mounts.
