The 6mm Advanced Rifle Cartridge (6×38mm), or 6mm ARC for short, is a 6 mm (.243) caliber intermediate rifle cartridge introduced by Hornady in 2020, as a low-recoil, high-accuracy long-range cartridge, designed for use in the M16 platform at request of a specialized group within the U.S. DoD for its multipurpose combat rifle program.

Commercial 6mm ARC offerings will feature bullets selected to deliver ideal performance for hunting, match shooting and personal protection applications. Achieves results never before delivered from the AR‑15 platform with the ultimate blend …

Oct 11, 2022 · The 6mm Advanced Rifle Cartridge (ARC) is an intermediate rifle cartridge that Hornady recently designed in 2020. The caliber was designed for the AR-15 platform to offer militaries, law enforcement, and civilians a low-recoil caliber that maintains high accuracy and long-range effectiveness.

Apr 12, 2024 · The 6mm ARC is well worth it due largely to its ballistic superiority to other AR-15 chamberings. You might like your classic 5.56 NATO or find the 6.5 Grendel fits your needs well, but there’s no denying this is a better option for long-range shooting.

Feb 17, 2025 · With the rise of 6mm ARC, we’ve been asked many questions on what it takes to get started shooting and if the round is perhaps overhyped. To learn more, we reached out to Eric Lee, owner of Sgt of Arms, who is building high-quality, competition-winning ARs, many of which are chambered in 6mm ARC.

Mar 18, 2025 · In addition to the two hunting loads from Hornady, there are two Hornady target loads (the ELD Match and a Hornady BLACK 105-grain boat-tail hollow-point load), and a 108-grain target load from Federal Premium, featuring a sleek Berger bullet.. Many folks say the 6mm is gaining considerable ground on the 6.5mm bore diameter for the appreciable difference in recoil, and the 6mm ARC certainly ...

Technical specifications of caliber6 mm ARC, popular powders, suitable bullets, and comprehensive load data for this caliber.

Jul 23, 2020 · What Is the 6mm ARC Cartridge? The 6mm ARC cartridge is a new SAAMI-spec cartridge based on the 6.5 Grendel case necked down for 6mm bullets, with the shoulder moved back 0.030. Yes it is designed to run in AR15-platform rifles.

The 6mm ARC delivers impressive ballistics for its size. It can fire 6mm (.243) caliber bullets at around 2,700 fps from an 18-inch AR-15 barrel. This velocity allows for excellent long-range accuracy. The 6mm ARC can match the performance of larger rounds like .308 Winchester at extended distances.

Feb 19, 2025 · For those who don’t know, 6mm ARC has been limited to 52,000 PSI because of the AR-15, while Hornady has offered load data for 6mm ARC bolt action rifles that show a good increase in velocity with the same projectile (and an increase in chamber pressure).