Nice idea, but I think of takes away from the rifle or smoothie. I would put a tarnished brass or iron tip on it with threads in the end of the tip & epoxy it on them a 1/16" pin thru it. (YOu may someday be glad you have those threads, and not so glad if you didn't pin it.
To me the horn tip is kinda like putting a swirl burnt stripe on a RR. Great if you like it, but takes away from the rifle. Attention is supposed to be on the rifle, not the RR or the tip. But it is yours, do as you like. RR tip is a easy change later on if so desired.