Atomic Ammunition Tactical Cycling Subsonic 7.62x39mm 220grain Boat Tail Hollow Point Brass Cased Rifle Ammo 100 Rounds. 62x39 220gr subsonic ammo is tuned for suppressed AK-pattern rifles. This 220gr hollow point boat tail load is built for reliable semi-auto cycling hard-hitting close-range performance and quieter shooting than standard AK ammo. The biggest challenge with subsonic 7.62x39 is cycling the AK gas system was designed for full-power ammunition. Atomic solves this with a carefully tuned powder charge and 220gr projectile that generates enough gas pressure to cycle the action while keeping velocity below the sound barrier. Combined with a suppressor the 7.62x39 drops to hearing-safe levels (120-125 dB) without the supersonic crack. The 538 ft-lbs of energy makes this one of the hardest-hitting subsonic rifle rounds available effective for suppressed training tactical scenarios and close-range applications. Loaded with components: new brass cases (not steel or lacquered reloadable) precision-weighed Hodgdon powder charges and match-grade 220gr HP BT projectiles. Hand-inspected to ensure reliable cycling and consistent subsonic velocity. Specifications for Atomic Ammunition Tactical Cycling Subsonic 7.62x39mm 220grain Boat Tail Hollow Point Brass Cased Rifle Ammunition: Manufacturer: Atomic Ammunition Caliber: 7.62x39mm Bullet Type: Boat Tail Hollow Point (BTHP) Bullet Weight: 220 grain Cartridge Case Material: Brass Muzzle Velocity: 1050 ft/s Muzzle Energy: 538 ft-lbs Application: Target Shooting Features of Atomic Ammunition Tactical Cycling Subsonic 7.62x39mm 220grain Boat Tail Hollow Point Brass Cased Rifle Ammunition Origin America Sound Reduction 30-40 dB w/ Suppressor Platform Rifle Caliber 7.6239 Bullet Weight 220gr Bullet Type Boat Tail Hollow Point Case Material Brass Muzzle Velocity 1050 fps Muzzle Energy 538 ft-lbs Application Suppressed Shooting Cycling Tuned for AK semi-auto Subsonic Yes Package Contents: Atomic Ammunition Tactical Cycling Subsonic 7.62x39mm 220grain Boat Tail Hollow Point Brass Cased Rifle Ammunition What is Atomic Ammunition Tactical Cycling Subsonic 7.62x39mm 220grain Boat Tail Hollow Point Brass Cased Rifle Ammunition good for? The manufacturer thinks that it is good for target shooting.Atomic Ammunition CART-762-220GR-TCSSUB-100: Tactical Cycling Subsonic 7.62x39mm 220grain Boat Tail Hollow Point Brass Cased Rifle Ammo 100 Rounds