THE BASIC PRINCIPLES OF CCI LARGE PISTOL PRIMERS 350

Getting ready to get many of your 224 69gr bullets for my Valkyrie which i prairie Pet hunt with. I’m not a professional by any indicates, but I do reload a great deal. I don't have any clue what 3GH implies, And that i’m curious! Any assist with that could be fantastic!CCI Muzzleloading Primers are developed completely for inline muzzleloading