Founder Keven Brittingham and his original company, Advanced Armament Corporation (AAC), are responsible for the 300 Blackout cartridge ... and Q makes both from stainless steel.

Available Chamberings: 240 Weatherby Magnum, 243 Winchester, 257 Weatherby Magnum, 6.5 Creedmoor (tested), 6.5 PRC, 6.5-300 Weatherby ... is turned from 416R stainless steel, sleeved with carbon ...