I have read conflicting stories on this. Originally I thought the reason for +p brass was for a hotter load thicker webbing to withstand the added pressures. Then I see where some are saying due to the thicker webbing the volume of powder was decreased. In another account I seen a pic of the two cases cut in half length ways and the +p had less material in the head so slightly more powder could be used so can someone put some clarification on the differences and separate fact from fiction.
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