G.T. Nunn with Frontier Outfitting out of Bosque, New Mexico does an excellent job for huge antelope. Super guy with a great outfit in an area with a lot of big antelope. Tags are easy to get. www.frontieroutfitting.com
Alan,
If a Wyoming antelope hunt is what you are looking for then you need to contact Canyon Creek Outfitters. The web site is: http://www.canyoncreekoutfitters.com/. The antelope hunts take place in Area 24 which is near the town of Gillette on private ranches and area 6 and possibly 8 on private land as well.
Nothing like guttin' a 6x6 elk at 7:30 in the morning.