I recently bought a bushnell banner 4x16-40, I have never had any problems from the bushnell scopes that I have or have had. Most if them were 3x9-40 with just crosshairs. The one I just bought has some extras when looking through the scope. I'm pretty sure its for yardage but not sure how to use it. Do I need to sight it in at a certain yardage? Really can't find any info about this. I'm hoping someone is will understand what I'm talking about and asking.