Reply To: New Brass Prep. › Forums › Reese Bottom Chat Room › New Brass Prep. › Reply To: New Brass Prep. June 16, 2014 at 7:13 am #1470 Al BarrParticipant If I’m using Lapua brass; I prime them, powder them and seat the bullet. If you have a “tight neck” chamber, case neck turning May be required.