This muzzleloading rifle scope with Nikons unique BDC-250 bullet drop compensating reticle allows you to realize the full potential of your muzzleloader. This compact 3-9x40 black powder beauty features five inches of constant eye relief to accommodate magnum-charge recoil. The Omega BDC-250 reticle is designed to be sighted-in at 100 yards with aiming-point circles at 150, 200, 225 and 250 yards. The reticle is calibrated utilizing a 50 caliber T/C Omega rifle with 28" barrel, 250-grain bullet and 150 grains of Pyrodex powder or pellets.Field of view @ 100 yds.:25.2'-8.4', Length: 11.3", Weight: 13.7 oz., 1/4 MOA Eye Relief: 5".