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Arrowhead · March 5, 2012, 11:41 PM

How much should I back off the powder when using CCI 450 primers in an AR? My Hornady manual lists 23.5 grs a max load with a 75HPBT.

March 5, 2012, 11:41 PM	#1
Arrowhead Member Join Date: January 28, 2011 Posts: 33	.223 Varget & Magnum primers? How much should I back off the powder when using CCI 450 primers in an AR? My Hornady manual lists 23.5 grs a max load with a 75HPBT.