224 Valkyrie sounds awesome, I want one ... or more. Some folks use Rem 700 Long actions for very long bullets in short action calibers, which made me think, what could be done with that concept using the new 224 Valkyrie cartridge in an AR-10 receiver?
Federal Premium factory AR-15 mag length loads for the 224 Valkyrie include 90 gr SMK with G7 BC 0.26 and 100 gr Fusion with G7 BC 0.23. How about some even longer-than-AR-15-mag-length cartridges with higher-BC ELR bullets around 105-115 grains or maybe 90-100 grain monolithic bullets, that would feed from an AR-10 compatible mag? I’m thinking G7 BCs up around 0.33-.36? MVs 2500-2550 fps or more in a 26-28” barrel, or maybe 2700+ MVs for the monolithics? Maybe would need a different bolt carrier, a modified magazine design, turn down the gas a bit, and maybe a 1:6 twist barrel. Maybe 27-28 rounds in a mag the size of a 25-round AR-10 mag, the loaded weight of a 30-round AR-15 mag, cheap brass, slightly more recoil than a .223, great barrel life, and great performance out to more than the 1300 yds claimed for the 90 gr SMK load. Go long, or go wrong?
Federal Premium factory AR-15 mag length loads for the 224 Valkyrie include 90 gr SMK with G7 BC 0.26 and 100 gr Fusion with G7 BC 0.23. How about some even longer-than-AR-15-mag-length cartridges with higher-BC ELR bullets around 105-115 grains or maybe 90-100 grain monolithic bullets, that would feed from an AR-10 compatible mag? I’m thinking G7 BCs up around 0.33-.36? MVs 2500-2550 fps or more in a 26-28” barrel, or maybe 2700+ MVs for the monolithics? Maybe would need a different bolt carrier, a modified magazine design, turn down the gas a bit, and maybe a 1:6 twist barrel. Maybe 27-28 rounds in a mag the size of a 25-round AR-10 mag, the loaded weight of a 30-round AR-15 mag, cheap brass, slightly more recoil than a .223, great barrel life, and great performance out to more than the 1300 yds claimed for the 90 gr SMK load. Go long, or go wrong?
