I've had a hawke vantage for a few month now and it's not seen so much use, I was using it the other day and all of a sudden I went from nice single hole groups to 1" all around my aim point I scratched my head wondering what the issue was and cleaned the barrel.

When trying again it was the same but then all of a sudden jumped back into life and a single hole appeared again but not for long, this is when i decided to have a closer look at the scope and i found that the ao had about 1/8 turn of slack when adjusting, as in it just turned freely and then felt normal again and stayed this way this fixed it for a while but it happened again.

Has anyone else had this issue?