Improve your shooting when hunting or during target practice with the BSA Sweet 17 6 - 18 x 40 Riflescope. Designed for use with .17 HMR ammunition, this riflescope is incrementally calibrated to adjust for elliptic bullet drop to enhance accuracy. Multicoated optics provide clear images, and waterproof, fog-proof and shockproof construction enables use in harsh conditions. Simple setup.