300 Blackout subsonic ammo from Magtech is designed for target practice, training, and subsonic shooting applications in firearms chambered for .300 AAC Blackout. This Tactical Subsonic load uses a 200-grain Full Metal Jacket bullet in a brass case.
Magtech product code 300BLKSUBA has a listed muzzle velocity of 1,050 fps, muzzle energy of 490 ft-lbs, and G1 ballistic coefficient of .560. Each box contains 50 rounds, and a full case contains 20 boxes for a total of 1,000 rounds
Specifications
-
Caliber: .300 AAC Blackout
-
Bullet weight: 200 grains
-
Bullet type: Full Metal Jacket, Subsonic
-
Case material: Brass
-
Primer: Small Rifle Primer 7 1/2
-
Muzzle velocity: 1,050 fps
-
Muzzle energy: 490 ft-lbs
-
Ballistic coefficient: .560 G1
-
Rounds per box: 50
-
Boxes per case: 20
-
Case quantity: 1,000 rounds
-
Product code: 300BLKSUBA
The 200-grain subsonic FMJ load is intended for target practice, training, and suppressed-firearm applications where lawful and appropriate. It is not an expanding hunting or defensive load. Confirm that your firearm is chambered for .300 AAC Blackout and functions reliably with subsonic ammunition before use. Always follow applicable laws, safe firearm practices, and manufacturer guidance.




