You still need an idea of yardage. Most pendulums are good up to 30yds, don't forget to account for uphill or downhill shots. I see your from mississippi, so you probably don't have the hills that we have out here in New England.

I still recommend the impact sight, it has bright fiber optics. I don't believe that the keller sights have fiber optics. I thought the red light that they had made seeing your sights worse.