Okay folks, General dimensions of the chamber cast are 2.75" chamber, .433" Rim, .360" Base, .297" neck, barrel groove dia is .263.
It is a 4229D Franz Sodia 20x20x? Steel butt contains cartridge trap. Action has crossbolt, double trigger (rifle sets), steel trigger guard. Barrels are Krupp “Primus” premium steel 26 ½”, F&M, 2 9/16” chambers
Any help is appreciated