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Old June 17, 2013, 10:06 PM   #7
Jimro
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Join Date: October 18, 2006
Posts: 7,097
The myth of 308 being higher pressure than 7.62x51 came from a pressure rating of "50,000 psi cup" being shortened down to "50,000 psi" in a government manual.

When you talk cup to cup or psi to psi they are the same thing as far as pressure is concerned. Still, no point in trying to hot rod an enfield.

Jimro
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