I hunted with a 3-9x40 Fullfield II on my M70 for awhile, but I could never get the eyebox set to where I didn't have to adjust my head for every shot. I really like the glass and the reticle is decent. I wound up putting it on my AR after I swapped it for a VX-3i on the Winchester. I've been very pleased with it on there, the eyebox is much better suited I think for a shorter LOP (trying to get my Gf to let me put it on her Savage compact 7mm-08 in place of her Nikon). I think the Burris optics have great glass for the money. Keep in mind I'm not a glass snob since my wallet doesn't allow it, with my VX-3i and a Vortex Viper as my most expensive optics, I'm usually a Diamondback/VX-Freedom buyer. The Ballistic-Plex reticle is nothing special, I do like how it's not a "busy" reticle, and once you hit the range and confirm your marks, you're good to go. Burris has a ballistic calculator online similar to Nikon's Spot On that shows you where you "should" be hitting.
Long story short, this scope is a good buy with the caveat that it goes on a shorter LOP rifle like a compact or on an AR platform IMO