This New Military Round Is Insane...
This entry details the 6mm ARC cartridge's performance, positioning it as an advanced round for Special Purpose Rifles (SPR) and Designated Marksman roles. Expert analysis from Garand Thumb highlights its superior long-range ballistics, energy retention, and terminal effects compared to 5.56 NATO, while fitting within a standard AR-15 platform. The data includes velocity, accuracy, and wind resistance metrics, showcasing its effectiveness beyond 1,000 yards.













