FWIW - my MPR/lightstream is

on low mounts
zero 25 yds
.177 @ 780 fps
10 x mag
20yds paralax

8 yds - minus 1 mil
10 yds - minus 1/2
12- 30 yds - zero
35 - top of kill (+ 1/2 mil)
40- + 1mil
45 + 1.5mil
50 +2 (and a bit)

..but that's just my set up

Derek