I hunted the Sheldon for antelope in 1991, deer in 1995 and antelope again in 2010.
On my hunt in 2010, I was on the ground for 9 days and hunted my rear off. I left gave it everything I had. The first morning at 2 am I hiked a couple miles into one of the hot spots in the dark and sat until sunrise. and watched a pile of antelope file by me.
I left the afternoon of the last day. The last day I hunted I hiked 4 miles in the dark to a spring to sit it all day. I could have killed a 16" thin horned buck but I let him walk. The best antelope I saw on that entire hunt may have gone 80". I got photos of him and had a guy who truly knows how to score antelope look at him and he said it was maybe 80". I could have shot numerous bucks but my goal was a solid book buck or nothing. When I left that hunt, my boot were literally falling apart from numerous miles on volcanic type material. I chucked them after the hunt.
In the place I was camping was another guy. He had killed a 90" antelope in Arizona a few years before. He hunted his tail off and on the next to the last day shot a fair 15" buck. The third guy in the place I was camping hunted to the end of the season. When I left the last day he had not tagged out either.
I love the place, and am applying there because I know the unit well, but it certainly is not full of book bucks. I believe they are there but you will have to work for them. I've hunted antelope about a dozen times, and it is probably the toughest place I have ever antelope hunted.
If you'd be happy with a 14-15" buck in the mid 70's that would not be a problem. There are big bucks, but you will likely need to have that buck pre scouted, or work hard for it.
