Barnes Vor-TxRifle Cartridges .223 Remington TSX Flat Base 55 Grain 20 - Rounds 21520. The TSX (Tempered Solids X) provides double-diameter expansion and maximum terminal performance making it a great choice for a hunting rounds. The TSX (Tempered Solids X) provides double-diameter expansion maximum terminal performance and reliable results making it a great round for handgun hunting as well as long-range shooting. Great for varmint hunting and target shooting TSX (Tempered Solids X) bullets deliver double-diameter expansion making them ideal for putting down birds game and larger targets. The all-copper construction of TSX (Tempered Solids X) bullets provides maximum tissue and bone destruction pass-through penetration and devastating energy transfer. This combined with the copper construction makes the TSX (Tempered Solids X) an ideal hunting bullet. Offering consistent performance toughness and accuracy .223 Remington ammo is sure to be a great round for your next hunt. Specifications for Barnes Vor-Tx .223 Remington 55gr TSX FB Rifle Cartridges: Manufacturer: Barnes Caliber: .223 Remington Number of Rounds: 20 Bullet Type: Flat Base Hollow Point (FBHP) Bullet Weight: 55 grain Cartridge Case Material: Brass Muzzle Velocity: 3240 ft/s Muzzle Energy: 1282 ft-lbs Application: Big Game Package Type: Box Primer Style: Centerfire G1 Ballistic Coefficient: 0.209 Lead Free: Yes Velocity: 2850 fps Package Contents: Barnes Vor-Tx .223 Remington 55gr TSX FB Rifle Cartridges What is Barnes Vor-Tx .223 Remington 55gr TSX FB Rifle Cartridges good for? The manufacturer suggests that it is good for big game.Barnes Vor-TxRifle Cartridges .223 Remington TSX Flat Base 55 Grain 20 - Rounds 21520