Most of us add rifle scopes to our arsenals on an as-needed, ad-hoc basis. We pick up a new deer rifle and then cast about for a deer-appropriate scope. Or we get hooked on varmint hunting, and scout ...

The moment a bullet leaves a rifle barrel, it’s dropping. To compensate for that drop and get bullets where they need to go, long-range shooters use one of two units of measure: MRAD or MOA. Both are ...