Oops, I meant August Schuler, Suhl. I was going from memory, obviously flawed. The action is marked Herkules. The locking lugs are on the outside of the action. I gather that this is a characteristic of the Herkules action. I have a set of CH4D dies. I shortened the 9.3 cases about 1/4" first, then ran the cases into the sizing die with the decapping pin removed. As to bore dimensions, anything made before 1937 is entirely up to the maker, as German dimensions weren't standardized until then, according to Dave at CH4D.
I sized in steps, lubing each time, and finally got the cases sized. Then I sized with the pin in place, and annealed the cases standing in an inch and a half of water. The chamber is a good bit longer than 58mm, and the leade is long as well. I seated a bullet just barely in the case and it chambered without resistance. As this is a single shot, I only seated the bullets deep enough to insure that they won't pull out in handling. The expander ball is .262. I fired the gun today. No pressure issue; the cases fell out of the chamber and primers were not flat. There is little change in case dimension after firing, so the dies were a good fit. Dave at CH4D told me he made the dies to a chamber cast from a vintage gun. The gun groups 2" above the sights at 50 yards. Four shots grouped into 1.5 inches. I can live with that. Now all I need to do is make some sights that are high enough to easily use.
Last edited by Vol423; 11/19/13 11:41 PM.
