I can't hold zero on my C-More Quinn II mount at all.I've read & researched the topic thoroughly but obviously I'm not doing something right. I had a plastic version on it, kept zero for 4 months then went south. I'd re-zero it, would stay for a match & then go south again. I read that the aluminum model held zero more consistantly so I ordered & installed her. Red loctite the aluminum one, set up zero shooting one ragged hole & everything is good. Next practice I like to check zero at the beginning, I'm not even close to being on. Re-zero, go through 250 rounds, everything is perfect until all of a sudden I'm 8" low & 3" right - WTF! - re-zero, finish the practice, check zero & it's perfect. Clean her up, go to a match today, 1st target is a 6" plate, put my dot right in the middle, bang, nothing, bang, bang, bang, nothing, I have a beautiful group into the no shoot behind the plate 8" low - WTF! Do I pull her off & start from scratch? Does c-more sell the elevation screw that I now have buggered up?
I have no idea what I'm not doing wrong & really could use some guidance & help with this real PIA before I totally lose my mind.