I am running a Burris FF II on one of mine that I will shoot to 200 yards at game with 90 gr of bh209 and a shockwave bullet. Just killed one at 180ish yards this week. The drop on the bdc reticle is a nice plus. The other has a leupold vx2 2-7. That one is a 100 yard gun for the nephew with a 70 gr charge of bh209 by volume and a 240 gr xtp mag. Longer eye relief was desired even with the lighter charge for him.