Re: how to determine power level
I agree with others in this post that there is a big difference in use of magnification between paper punching and hunting. Mirage, lighting, field of view, and most importantly, the amount of time that you have while hunting to get lined up on your game are influenced by these factors. I would much rather use my time to confirm range and wind conditions then searching, and parallax adjustment at high magnification. Another important factor that doesn't get discussed much is the change in eye relief when changing scope magnification which can be a factor. This can effect shooting form if too pronounced. My personal preference falls in the 5-20x, or 5-22x scopes when my shots can be from 50 yards to 1000 yards under a wide range of conditions I never felt handicapped when I was using a 4.5-14x for this work.IMHO.
"Let us speak courteously, deal fairly, and keep ourselves armed and ready"-T. Roosevelt