The Mark V has 9 small and thin lugs (magnum chamberings) and 6 lugs (standard chamberings). They have decent surface contact area in the receiver, but I've always wondered whether the shear area is enough.
I would imagine how well the lugs mate with the action recess would be the determining factor.
You can have two larger lugs, in relation, that mate perfectly and have far more surface area than nine that are poorly mated.
QC is king in this type of deal.
I don't see letting high pressure stressed action parts "getting a run at one another" being a good idea.
That is pure armchair theory on my part, much like putting a long squishy recoil pad on a serious rifle as being a big mistake.
Last edited by kciH; 10/15/09.
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