6mm Max® Performance (Update Dec 30, 2022) 6mm Max® Performance (Update Dec 30, 2022) December 30, 2022 admin By admin December 30, 2022 In News Test Barrel: Bartlein 24” Twist: 1/8 Tested to SAMMI Standards in Socorro, NM at EMRTC. 80 gr Berger FB Varmint not available during testing. admin More by admin Share000 1