The reasons I became interested in this type of scope mount include:
- Being able to remove the scope and reinstall quickly without tools or loss of zero
- Being able to share a scope on multi rifles quickly. If you have a scope with good turrets, you can swap the scope to another rifle, make new zero adjustments but do not reset the turrets. When finished, swap scope back to original rifle and set turrets back to zero.
- Have a favorite short range, close quarters "tree scope" for squirrel hunting like a bug buster? Quick swaps. (They make a 1 inch model)
- Have a new favorite big bux scope and can't afford to buy multiple $3k scopes? Problem solved.
- Have an airgun that has a loopy trajectory and you run out of rotations or clicks on your turrets? Get the 20 MOA version.
- Have a rifle with a short pic rail that puts the scope a little too close for a good eye box? They make a version with a forward (extended) mount.
- Have a compact scope like a bug buster or AR type scope? They have a "close ring gap" model.
- Prefer to mount your scope with turrets closer to optical zero?
http://www.bobroengineering.com/view/product/32/
- BLAC- BOBRO LEVER, AUTO COMPENSATION
- Compatible with any 1913 Specification Rail (weaver and pic rail)
- Completely tool & User Adjustment Free
- Will Not Damage Rail due to User Error
- Doesn’t Shoot Loose
- Safety Latch
- Extremely Robust
- Requires no manual adjustment to attain a proper, rock solid, repeatable engagement.
Good explanatory video @ 8541 tactical YouTube channel.
On my cricket mini Carbine after initial mounting and zero; I removed and reinstalled the mount 7 times. The zero did not budge. Not a single click in any direction. I'm sure this repeatability was also a function of the Athlon Midas 2.5-15x50 scope with its excellent turrets but still - I was pretty impressed.