RE: sighting in a scope
Tompkins...
The answer I think you were looking for...since I read your whole post is this.
If your bullet is hitting low. Adjust the scope in the direction to go up. If it is left adjust the scope in the direction that it says right. It is opposite of sighting a bow in. When you sight a bow in you follow your arrow. If it shoots low you move your sights lower and vice versa. Hope this helps.
Brian