I bought a Tru-Glo Red Dot for shotguns a couple years ago for my turkey hunts but I have never had any luck at all getting it to sight in.. has anyone had this issue? I shoot at 15 yds and say it misses high left. So I do the necessary adjustment and shoot again. It misses way low left. then it will go way right then high left, ect.. Just no rhyme or reason to how it moves as to the adjustments I applied. IT WONT SIGHT IN! $85 down the drain. I took it on the last hunt that I got one and had a tom in front of me. I was so uncomfortable with its accuracy that I took out my pocketknife and unscrewed it and took it off all while watching/calling this tom. I ended up just taking the shot with my iron sights. Was it just too cheap for my 12 gauge? Or is there a bigger issue?