I found an old Bushnell 22 Rangemaster 4x scope with built on rimfire rings in the attic that I have questions about...On the elevation turret is a cap that when you turn it it changes the yardage on a dial from 50-200 yds and also has a Z1 position..there is a screw slot in the top of this "cap" but it does nothing more than adjust the range...I can unscrew it all the way out , but nothing inside of it..here is a small phillips head screw just ahead of the elevation turret in the body of the scope, but I didn't mess with that....the windage adjustment is a "normal" one ..remove the cap and turn the slotted part to move left and right....I used my laser boresighter and to zero the elevation at about 12 yds I have to set the rangemaster at 175 yds...anyone out there who could help i would appreciate it...or a manual? thanks
