Ok, I've spent most of the day getting his program to run. I've got it all working now. So, I'll see about getting some numbers run. It will probably be tomorrow before I can get things run.
Just a quick run of the .308 proof round of 83,000 psi.
Using an AMD 65 bolt because it was handy.
Small lug length=.404
Small lug width=.256
Bolt Yield strength=100000 (using the figure for the 1050)
His program says:
Bolt Lug Shear Strength=10630
Lug Shear Area=.213