Originally Posted by xAsylum
oh okay. so basically, lets say I move it up 56 clicks. I would just move it back 56 clicks in the opposite direction to move it back to zero, right?
Basically, yes; that is all you have to do. As cross mentioned, it is much easier to count minutes if you have a scope that will show minutes. Counting clicks is a PITA, and leaves alot of room for error. Additionally, if the scope has a micrometer type base on the turret, then you don't have to count back at all........you just record where zero is (example: zero is 4 marks showing below/above the rotating portion) and turn it back to that reference when you are done.
Some scopes have a "zero stop" which basically just doesn't let you turn it backwards past that initial zero spot. With these, we just dial for the shot and then turn it backwards until it stops moving. This stop is adjustable of course.
Here's a picture of a Leupold Mark 4, it doesn't have "zero stop", but it has the micrometer type of reference. It was set at zero at 100 yds for that load/rifle. In this case, we would note somewhere that zero is 5 marks showing