help to find an old country song ...ballad? (gunslinger and a cowboy)

This old song is driving me nuts trying to figure it out...it is about a gunslinger and a cowboy the cowboy saves the gunslingers life and they meet up again at the end of the song for a gunfight and the gunslinger shoots the pistol out of the cowboy's hand and says we are even now friend any help with a title for this song would be greatly appreciated