Hornady Frontier Subsonic .338 ARC, 285gr FMJ, 20-Round Box Hornady Frontier Subsonic .338 ARC ammunition combines a 285-grain FMJ bullet with 20-round box packaging. The heavy full metal jacket projectile offers a subsonic option for range use. The heavy, 285-grain FMJ bullet is supplied in a 20-round box for shooters seeking a subsonic .338 ARC range load. This is full metal jacket ammunition, not an expanding Sub-X hunting configuration. Shop Hornady Frontier Subsonic at BattleHawk Armory. Choose the heavy FMJ option for your .338 ARC subsonic setup. 285-Grain FMJ Subsonic Configuration The heavy full metal jacket bullet is paired with a subsonic loading for .338 ARC. The FMJ construction identifies this as a range-oriented choice rather than an expanding Sub-X hunting load. Subsonic Range Use Choose this load when below-sound-speed ammunition is part of your range setup. Subsonic ammunition still produces hazardous noise; use appropriate hearing protection and verify the firearm and any suppressor are approved for the cartridge and load. Chambering and Compatibility Use only in a firearm approved for .338 ARC ammunition. Match the complete cartridge designation to the firearm and follow its ammunition instructions. Confirm function and point of impact when changing loads. Product Specifications Manufacturer: Hornady Product Family: Frontier Subsonic Ammunition Type: Centerfire rifle ammunition Cartridge: .338 ARC Bullet Weight: 285 grains Bullet Type: FMJ (Full Metal Jacket) Package Quantity: 20 rounds Packaging: One box Manufacturer Item Number: FR430 UPC: 090255729535 Frequently Asked Questions How many rounds are included in this .338 ARC package? This product contains 20 rounds in one box. Each cartridge is loaded with a 285-grain FMJ bullet. What does FMJ mean? FMJ means full metal jacket. This is an FMJ configuration, not an expanding hunting-bullet load. Order Hornady Frontier Subsonic .338 ARC at BattleHawk Armory. Supply your subsonic range setup with this heavy-bullet FMJ configuration.