What is the 338 ARC?
The 338 ARC (Advanced Rifle Cartridge) represents Hornady's innovative approach to creating a versatile round that excels in both subsonic and supersonic applications. As the newest addition to Hornady's ARC family, the 338 ARC combines the power of a .338 projectile with AR-15 platform compatibility, setting it apart from similar cartridges in its class.
The 338 ARC has been designed to provide unparalleled performance in a wide range of conditions. Its ability to perform well in both subsonic and supersonic configurations makes it ideal for various shooting needs, from tactical applications to hunting. With its AR-15 compatibility, shooters can enjoy the benefits of a powerful round without needing to switch platforms.
338 ARC Performance Specifications
Hornady engineered the 338 ARC with two distinct loading options. The subsonic variant features a 307-grain SUB-X bullet achieving 1,050 fps from a 16-inch barrel, while the supersonic load drives a 175-grain hollow point to 2,075 fps (+). These carefully balanced loads ensure optimal performance across various shooting applications.
The 338 ARC operates at 30,000 PSI for subsonic loads and 52,000 PSI for supersonic variants (+). This pressure range allows for consistent cycling in semi-automatic platforms without requiring adjustments when switching between load types, a significant advantage over similar cartridges.
338 ARC Platform Integration
The 338 ARC functions flawlessly in the AR-15 platform. This compatibility extends to standard Type 2 bolt faces making the transition to 338 ARC both practical and cost-effective for existing AR-15 owners.
338 ARC Hunting Applications
For hunters, the 338 ARC demonstrates impressive capabilities, particularly in subsonic configurations. Hornady's testing confirms effective performance on medium to large game out to 200 yards with subsonic loads. This performance envelope makes the 338 ARC an excellent choice for hunters operating in areas where sound suppression is beneficial.
338 ARC Suppressor Compatibility
The 338 ARC works seamlessly with various suppressor options, including dedicated .338 caliber units, compatible 9mm suppressors, and .45 caliber suppressors. This flexibility allows shooters to leverage existing suppressors or choose from numerous new options specifically designed for the 338 ARC.
338 ARC vs Competing Cartridges
When compared to similar cartridges, the 338 ARC offers distinct advantages. While the 300 Blackout has long dominated the subsonic AR-15 market, the 338 ARC delivers approximately 1.5 times more energy in subsonic form (+). Against the 8.6 BLK, the 338 ARC provides similar ballistic performance while maintaining compatibility with smaller, lighter AR-15 platforms.
Manufacturing Support for the 338 ARC
Leading manufacturers including CMMG, PWS, Faxon, and KAK Industries have embraced the 338 ARC, developing various rifle components and configurations from 6.5-inch SBRs to 16-inch standard rifles. This robust industry support indicates strong potential for the cartridge's continued growth and adoption.
Practical Considerations for 338 ARC Users
While the 338 ARC offers numerous advantages, potential users should consider several practical factors. Ammunition availability and cost typically remain higher for new cartridges until production volumes increase. Additionally, the weight of loaded magazines, particularly with 307-grain subsonic ammunition, may impact some applications.
Future of the 338 ARC
The 338 ARC represents a significant advancement in cartridge design, particularly for shooters seeking enhanced subsonic performance in a compact platform. Its versatility, combined with strong industry support and Hornady's reputation for innovation, positions the 338 ARC for continued growth in the firearms market.
Conclusion: Why Choose the 338 ARC?
The 338 ARC delivers on its promise of enhanced capabilities in both subsonic and supersonic configurations. For shooters seeking a versatile cartridge that combines power, precision, and platform compatibility, the 338 ARC presents a compelling option. Whether for hunting, tactical applications, or precision shooting, this innovative cartridge continues to prove its worth in the field.
Want to explore the 338 ARC further? CMMG is proud to be the first manufacturer in the world to bring complete rifle systems for this caliber to market, making it easier than ever to experience the advantages of this revolutionary cartridge firsthand.