08-05-2018, 05:35 AM
Bill Alexander actually experimented with the 90’s and couldn’t get them to work consistently with mass producible barrels. Some were awesome, others weren’t. High end barrels might be better, but the chambers need to be perfect. The guys that tried 90’s in single fed rifles mostly went back to 80’s. You CAN make the Valkyrie work, but it takes more than most people think. And if you run a 6 Grendel, especially a hotter 6 like the 6mm AR Turbo or RAT you can eat the Valkyrie up.
You seek escape from pain. We seek the achievement of happiness. You exist for the sake of avoiding punishment. We exist for the sake of earning rewards. Threats will not make us function; fear is not our incentive. It is not death that we wish to avoid, but life that we wish to live. - John Galt