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View Full Version : Wilson (Lehigh) 9mm velocity



krav51
04-20-2023, 05:53 AM
Does anyone know why Wilson dropped the velocity of the Lehigh 9mm extreme defender 90 grain from 1475 as loaded by Underwood down to 1300? My understanding is this round needs velocity to transfer energy. Why lower it? I believe both are stating 4 inch test barrels.