Atomic Ammunition Subsonic .308 Winchester 175grain Boat Tail Hollow Point Brass Cased Rifle Ammo 100 Rounds CART-308WIN-175-SUB-100. 308 Win 175gr subsonic ammo turns suppressed .308 rifles into quiet training and practice platforms. The 175gr hollow point boat tail load stays below the sound barrier preserves practical accuracy and fits suppressed precision work at sane distances. The 175gr HP BT is a proven match-grade projectile that delivers excellent accuracy even at subsonic velocities. In suppressed .308 platforms noise drops to 120-125 dB hearing-safe and dramatically quieter than the 160+ dB of unsuppressed supersonic fire. The 428 ft-lbs of muzzle energy provides effective terminal performance for close-range applications and the .308s universal availability means you can use the same rifle for full-power and subsonic loads by simply swapping magazines. Every cartridge is loaded with components: new brass cases precision-weighed Hodgdon powder charges and match-grade 175gr HP BT projectiles. Hand-inspected for consistent performance. Specifications for Atomic Ammunition Subsonic .308 Winchester 175grain Boat Tail Hollow Point Brass Cased Rifle Ammunition: Manufacturer: Atomic Ammunition Caliber: .308 Winchester Bullet Type: Boat Tail Hollow Point (BTHP) Bullet Weight: 175 grain Cartridge Case Material: Brass Muzzle Velocity: 1050 ft/s Muzzle Energy: 428 ft-lbs Application: Training Features of Atomic Ammunition Subsonic .308 Winchester 175grain Boat Tail Hollow Point Brass Cased Rifle Ammunition Origin American-made Sound Reduction 30-40 dB w/ Suppressor Caliber .308 Win Bullet Weight 175gr Bullet Type Hollow Point Boat Tail Case Material Brass Muzzle Velocity 1050 fps Muzzle Energy 428 ft-lbs Application Suppressed Precision Quiet Practice Training Package Contents: Atomic Ammunition Subsonic .308 Winchester 175grain Boat Tail Hollow Point Brass Cased Rifle Ammunition What is Atomic Ammunition Subsonic .308 Winchester 175grain Boat Tail Hollow Point Brass Cased Rifle Ammunition good for? The manufacturer thinks that it is best for training.Atomic Ammunition CART-308WIN-175-SUB-100: Subsonic .308 Winchester 175grain Boat Tail Hollow Point Brass Cased Rifle Ammo 100 Rounds