If you want to optimize your return on your investment, unless it is too late, I would cut that bull calf and sell him as a club steer. Seriously, good hereford steers are very hard to find and people pay top dollar for them. You could easily get 3k for that steer as soon as you weaned him off the cow. You would get more money for him than if you would feed him out to be a bull. Even if you took him to a sale, nobody knows you, and you would take a hit on the sale price. Most people will pay more money for a lessor quality bull from a respected breeder than they will from someone with one bull. It isn't fair but that is the way it is.
Depending on how thick he is behind, they want them real thick these days. Show steer business is funny. We have bought some good steers for our son because we won't cut our good bulls. He won Grand Champion at a pretty big fair with a calf and the first thing everyone wanted to know how he was bred? Huh? He is a steer, he is going to die in four days! I had to call the jock we bought him from to find out because so many people were bugging me!LOL