Drive thru it almost daily but have never hunted on the base. It is HUGE though and I have seen some nice deer along the side of the road.
You can contact the Jackson Guard for specfic information, but I don't believe that modern rifles are allowed, only muzzleloaders, shotguns and archery.
The security on this base is very tight, as they test and develop some serious stuff out there so dont stray from open areas into sensitive areas.
As a Taxidermist I look at hundreds of Whitetail Bucks every year. I know that I have seen many different ways people judge the size of racks on live deer. I think for the most part they all are pretty close. I'm going to give you some measurements that I have noticed being right on in just about every deer. We have used it in the last couple years and have only been off by about 5-6 inches. We do study the deer while bowhunting so we get a little more time to look at them....