Natchez.com happens to have a CVA Staghorn Magnum .50 caliber
CVA Staghorn Magnum on special right now for $99.95. They also have an American Knight Value Pack
Knight American Value Pack for $109.95 I believe it was. Both are great rifles and would be an excellent value.
I have a CVA Staghorn Magnum and I agree, they are a great shooting rifle. Throw a nice Bushnell Banner Dusk to Dawn scope on it and your set for anything. I also have a Knight Wolverine II which is a lot like the American Knight. I was shooting this today and holding a 3.5 inch group with the open sights at 100 yards. It would have been a tighter group but I had a flyer with my handcasted homemade bullets. they were 405 grain flat nose .458 on 80 grains of FFg.
Good luck. Hope the links helped.