Yes and No,
Probably this is my 4th cmore( plastic) in the the last 10 yrs , and all of them will lost its zero after 500rnds, my latest is worst, only 200 rnds either the windage or elevation will shift. Contacted Cmore about it, they recommend to have it ship to them for check up, unfortunately I have no back up, so will wait until the match schedule will cool down.
According to one of the Cmore reps and a lot of guys down south suggested to have my platic Cmore Rebuilt with the Aluminum Body to eliminate the same problem. Unfortunately we dont have a choice, CMore is still best REDDot for pistol action type shooting.