Quote Originally Posted by para View Post
A creature of habit I've always zeroed at the following distances.
25 yards .22
35 yards .177.

I seem to also remember if you zero a .177 at 15 yards due to the trajectory it will also be zeroed at 35 yards to - useful if your limited on space or the wind is up
Generic zero distances can give very different results between rifles, when factors like scope height, muzzle velocity and pellet weights are not the same from one rifle to another.

Picking a correct zero distance for a particular setup, is far better in terms of managing trajectory and aim points