A good rule is the extended the lens, the additional effective the scope. Magnification bends light rays employing a number of lenses inside the scope, the higher number of lenses equals extra power. A short low powered gun scope includes smaller lenses....

I asked the same thing when I first started searching to upgrade from iron sight to a great Hawke firearm scope. This guide should give you numerous insight into having the highest focus out of your Hawke scope, or any else adjustable parallax scope for...