In Wyoming, a small 4 or 5 point bull (2+ age class) is generically refered to as a "rag horn". Nothing derogitory is ment when someone refers to shooting a "rag-horn", as most meat hunters prefer to harvest either a rag-horn or spike, as they are much easier on the pallet than the older "herd bulls".
By definition, the OP's Wyoming elk is a very fine example of a "rag-horn". One that he should be very, very proud to have harvested. And even prouder to have harvested with a flintlock!
I hope I have explained it, and absolutly no disrespect was ment.