If only something remotely resembling a scientific method had been used it might even be worthwhile...
Oh come on! It is a useful shootout.
From memory:
Nothing was done to prep all test pieces to assure they all started from the same place...
A bare metals test is no indication of how the same metal blued would fare...
Setting them on the wet background could lead to random electrolysis...
I could go on. You know he posted it here first, right?