I am not saying the groups are the same at 3x as at 9x, but that we've overblown the small difference the extra magnification gets us. May be worth it to some, not to others.
Ringman, don't get your question? A pretty big whitetail has a topline to bottomline across chest area of about 20" = 20 MOA at 100; at 500, 4 MOA. But you knew that...
