That's a nice little rifle with an ovate profile at the muzzle. It appears that the barrel profile is a straight ovate section that blends into a cylinder then to a short flat at the top of the breech. Very fitting for a petite rifle like this.
I have an Emil Kerner from the same time frame that is a 9.3x57/360 and, although a falling block, like your rifle it is light and handy and very likeable.
Should the barrel prove inaccurate it wouldn't take much effort to get it back to the original chambering. The liner is probably soft soldered in and 9.3 barrels are readily available now as are .360 2 1/4 Nitro Express reamers.
Last edited by Dennis Daigger; 02/09/18 01:10 PM.