The BSA 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 cartridge. RSR - BCM-OR-AT-525-13X5