jvspopeye, We used Leupold 2.5-8's (generous eye relief) on our rifles for 20+ years and loved them. The Leupolds have long noted as long eye relief, lightweight, quality scopes. For your application that should be a great power range. We changed our hunting locations, which offered us a much higher percentage of longer range shoots.....most @ 300 or greater. We stepped up to the Leupold 3.5-8 with CDS....though we kept our 300 yard zero. As we use Leupold Quick Detachable base/rings, we keep our 2.5-8's for a quick back-up if needed!
A lot of folks are having "less than nice" things to say about the new Leupold's. We've only been using our new scopes about 10 years, so far so good. Our older 2.5-8's were used longer, withstanding a lot of rounds with recoil higher than most scopes endure.....as so many people use brakes these days! They were put away, placed on "stand-by", never having given a problem!
PS: Also, especially for your mentioned application.....the low end of your power range is much more critical than the higher magnification. With our 10 power (maximum setting), I'm very confident on deer/antelope sized game to 500 to possibly 600.....under "ideal" shooting conditions! On elk sized game....much farther than I feel comfortable taking the shot! memtb