I am wondering if I will be able to range gophers on flat ground from 200-400 yards with something like a Bushnell Scout 1000 rangefinder? If not how do you determine yardage for this application? Mil-dot's only? I want to build a cheat sheet to tape to my stock and dial in elevation and windage with my turrets based on yardage/wind. I have a Savage VLP .223 with Bushnell Elite 3200 5-15x40 AO Mil-Dot target turret scope. The turrets are 1/4 MOA. Thanks.