8in AR500 Knock-Over Shooting Target - 3/8 Rifle Targets - 6pc Steel Target Set Set includes six 8in. round knock-overs on 2in.x4in. bases. These steel targets are great for 308, 30-06, 270Win., .223, .45ACP, 9mm, .40cal as well as most other rifle & pistol calibers. Shooting Targets are manufactured from new AR500 hardened steel plate rated to 3200fps at 100yards. Assembled with strong professional heavy duty welds the full length/contact area of the base Shooting Targets are precision cut with a CNC plasma cutter and submersion water-cooled during the cutting process to preserve the integrity of the steel, ensuring the longest life of the target.