why is my moa changing HELP

[davewilson]

everything mentioned is certainly a possibility, but my guess would be the scope. i have a 6-20 on my Edge and had problems this fall with repeatability.Leupolds don't have the greatest reputation for repeatable tracking. i sent mine off to Cecil Tucker and got his coil spring/locking mechanism put on it. all i can say is it made one heck of a difference in mine.

[DIRTY 30 RUM]

I to have to agree that the Leupolds have trouble with holding zero, especially when adjusting MOA up and down. I have had two fail ,one on a RUM and the other on a WBY. I use a NXS on the RUMIE. With the R2 reticle I fly spot on. Zero @ 600 and use marks above from 0-500 yards. Any thing farther than 600 use the marks below the main cross hair. Now after 600 yards it starts dropping of the 2 MOA per 100 yards so you have two know your drop and bracket from there. This works for loads with .500 and above bc. 3300-3500 fps.