Typo...it's indeed an older R7
The little vintage 3-7 Beeman scope is a 3/4" tube with some real hoakie mounts that I'm struggling with to get into the grooves properly. Apparently the previous owner had the same isse as the rear mount was not engage into anything but air.
Regardless, I do need to know about this scope stop issue; where does it go in relation to the rear scope mount?