Sellier & Bellot Subsonic, 9mm Luger, 150 gr Full Metal Jacket, Handgun Ammunition, 50 Rd Box Sellier & Bellot 9mm Luger Subsonic 150 grain Full Metal Jacket is a heavy-for-caliber 9mm load that stays below the speed of sound. The 150 grain bullet uses a standard lead core under a CuZn30 metallic jacket, the familiar FMJ design for training and target shooting. Sellier & Bellot rates it at 1,001 feet per second and 333 ft-lbs at the muzzle from a 6 inch test barrel, so it runs under the roughly 1,125 fps speed of sound at sea level and avoids the sharp supersonic crack. That makes it a natural match for suppressed pistols and pistol caliber carbines, and a pleasant, soft-shooting load in an unsuppressed handgun. Each box holds 50 rounds, and Sellier & Bellot packs 20 boxes into a 1,000 round case. Shop Sellier & Bellot 9mm Luger Subsonic 150 gr FMJ 50 Rd Boxes at BattleHawk Armory. Key Features Subsonic velocity: 1,001 fps at the muzzle from a 6 inch test barrel. Heavy 150 grain FMJ: Lead core with a CuZn30 metallic jacket for training and target work. Suppressor friendly: Staying subsonic keeps the report down when you shoot through a can. Standard pressure: Not a +P load. Smooth recoil impulse: The heavy bullet at moderate speed gives a push rather than a snap in many pistols. Bulk friendly packaging: 50 rounds per box, 20 boxes per case. Ballistics Sellier & Bellot published these figures from a 6 inch test barrel, with a 12.5 yard zero. Distance (yd)Muzzle2550100 Velocity (fps)1,001985970942 Energy (ft-lbs)333323313295 Distance (yd)12.52550100 Point of impact (in)0.0+0.1-1.6-12.1 The heavy bullet holds its speed well, losing less than 60 fps from the muzzle to 100 yards. Pistol barrels shorter than the 6 inch test barrel will run a little slower, while a carbine may run a little faster, so a quick check over a chronograph is a good idea if staying subsonic in your setup matters to you. Running It Suppressed When a bullet breaks the sound barrier it makes its own small sonic boom that a suppressor cannot remove. Subsonic ammunition skips that crack, so what is left is the muzzle report the suppressor was built to handle. Many shooters find heavy 147 to 150 grain subsonic loads also cycle reliably in suppressed pistols, where the added back pressure changes the timing of the slide. Always confirm function in your own firearm with a few magazines before relying on any load. Because the bullet is heavier than common 115 and 124 grain 9mm loads, your point of impact may shift slightly compared with lighter ammunition. Spend a few rounds confirming your sights before a match or training class. About Sellier & Bellot Sellier & Bellot is a long-established Czech ammunition maker with a broad lineup of handgun, rifle, rimfire and shotgun ammunition. See more on our Sellier & Bellot page, or shop all pistol ammunition at BattleHawk Armory. Product Specifications Brand: Sellier & Bellot Part Number: SB9SUBB UPC: 754908500932 Caliber: 9mm Luger (9x19) Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 150 grains (9.7 g) Bullet Diameter: 0.355 in Sectional Density: 0.170 Jacket Material: CuZn30 Ballistic Coefficient: G1 0.318 Muzzle Velocity: 1,001 fps (subsonic) Muzzle Energy: 333 ft-lbs Cartridge Length: 1.169 in +P: No Test Barrel Length: 6 in Rounds Per Box: 50 Boxes Per Case: 20 (1,000 rounds) Frequently Asked Questions Is this ammo subsonic? Yes. Sellier & Bellot rates it at 1,001 fps from a 6 inch test barrel, below the speed of sound at sea level. Velocity can change with barrel length and temperature. Is it good for a suppressor? Yes. Subsonic loads avoid the supersonic crack, which makes them a popular choice for suppressed pistols and 9mm carbines. Is it +P? No. This is a standard pressure 9mm Luger load. Can I use it for self defense? It is a full metal jacket training and target load. For carry, choose a dedicated defensive hollow point. How many rounds are in a box? Each box holds 50 rounds. A case is 20 boxes, or 1,000 rounds. Order Sellier & Bellot 9mm Luger Subsonic 150 gr FMJ 50 Rd Boxes at BattleHawk Armory.