Gary, your SS Mauser is hard to believe. When I was a teenager, about fifty years ago, I maintained a collection of WW2 bringbacks for a Colonel who was a friend of a friend of my Dad's. Among the rather large collection was a SS 8.15X46. I was intrigued by the quality and condition, but never shot it. I was on a mission to shoot every one of those guns and almost made it. I have not seen one since.