I've been playing with a set of XS ghost ring sights on a rifle this spring. Given good light, I'd say that up to 100 yards I'd be very confident of hitting a deer in the lungs with them. I can also see that in dim or poor light, the scope would make a huge difference even at closer ranges. But I was after a handy rifle that I could carry easily around the farm, so decided to sacrifice the scope on this one. The aperture sight is far and away better than the factory opens...you can see your target, and only have a front sight and the target to worry about.
