Folks,
I cannot find these dimensions in any of my material, Drilling Combo,
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