Wolf;
One quickly notes the 21 Win which O'Connor Lauded so highly depended solely on "One" hinge pin to contain all axial forces & "One" locking bolt to keep it closed. That never seemed to bother him & with a double there is always the possibility of "Both Bbls" going at once. The question really is not "How Many" lugs but is what's doing the work adequate for the job. I'll have to drag one out one day & measure, but suspect that "Safety" lug on a typical 98 has more metal in resistance than an average hinge pin.
D110;
It is my understanding the typical Mauser was made of a carbon steel & then carburized where needed for wear hardness, as bolt locking areas etc. Receiver rings on many are rather soft. As the front lug seats are done away with in the conversion the main place left for the heat-treating to be needed is the seat for the safety lug. I do not really see how the heat-treat on remaioning metal would be affected "Unless" they annealed the entire action to make the conversion easier. Do you have knowledge of the actual process used here?
