Mark - I agree with that "Test", however, that doesn't answer my question whether or not hard shot causes high pressures. Can you say that hard shot has caused flat primers?
BTW, a friend of mine - a major league engineer for the big three, and a national caliber hot rodder, works up his high velocity rifle loads until he needs to use a mallet to open the bolt. Needless to say, I don't shoot on the bench next to him!
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