RELOADINGMANUAL•5THEDITION BulletName223Remington(AR-15)continued #1200.224"40gr.Hornet C.O.A.L.2.125" #1385.224"40gr.HP C.O.A.L.2.175" #1440.224"40gr.BlitzKing C.O.A.L.2.250" Powder/Velocity310032003300340035003600 VihtN13023.223.724.224.725.2 ...
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Wilson then selected bullets he wanted to use and reverse-engineered the case length to fit within the AR magwell, determining he could get .040-inch more case length than the 7.62×40 and .260-inch more than the .300 Blackout. Ron Reiber of Hodgdon Powder Company then recommended Hodgd...