Zeroing a scope is definitely the act of aligning your POA ("point of intention", Whatever you're aiming at) as well as your POI ("stage of impact", wherever the bullet fired out of one's gun is hitting) at a certain length. The main quantities before the ‘x’ suggest the magnification electricity. https://whitelightopticalsights78023.digitollblog.com/26807633/the-definitive-guide-to-white-light-optical-sights