Reply To: 30" Barrel Reloading Data?????? › Forums › Reese Bottom Chat Room › 30" Barrel Reloading Data?????? › Reply To: 30" Barrel Reloading Data?????? August 4, 2014 at 10:40 pm #1896 Tony GrahamParticipant I’d say start w/ 42.2 grains of IMR 4064 and see what it looks like!