This is a BSA Optics Rimfire Scope known as the Sweet 17, model 17-312X40AOWRTB.
The BSA(R) Sweet .17 AO Rifle Scope is specifically designed for the .17 HMR. These scopes feature fully coated lenses" an adjustable objective" 30/30 reticle" 2-pc Dovetail rings and generous eye-relief. This Sweet 17 AO series features a ballistically calibrated turret for the 17 gr cartidge.
Features:
MAGNIFICATION LOW: 3X
MAGNIFICATION HIGH: 12X
OBJECTIVE LENS DIA. (MM): 40
ADJUSTMENT GRADUATION (MOA): 1/4 LENS COATING: Fully Coated
W/E ADJUSTMENT RANGE: 35
EYE RELIEF (INCHES): 3
FOV LOW @ 100' (FT): 40
FOV HIGH @ 100' (FT): 10
PARALLAX SETTING (YDS): 7.5 to Inf.
ADJUSTABLE OBJECTIVE: Yes
