Quote:
Originally Posted by Nightowl
cups and psi are not equal. From what I have read, there is not arithmetic formula to convert one to the other, either. Don't understand that, just repeating what I have read. So I am not sure there is any difference in the actual pressure pushing the bullet out of the barrel in those numbers.
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You are correct, the two methods have nothing in common. Crushed copper vs transducers, if you take the time to read the differences they are quite dramatic. Did they really lower the velocity or is it just the way it is measured, still not sure. You could possibly test some of the new US Manufactured ammo to the new PSI against some foreign stuff that still goes by the old pressure method, I hear Fiocchi and IMI are two that do.