Remington Ultimate Defense Shotshell .410 Bore 4 Pellet 2.5in #000 Buck Centerfire Shotgun Buckshot Ammo 15 Rounds. These buckshot rounds from Remington are some of the most consistent in the market offering a medium penetration and moderate expansion helping to take on home invasions and other threats within close range. Be sure to try out some of our other .410 gauge shotgun ammo as well as all of our other shotgun ammo. This Remington .410 gauge ammo is sure to provide you with the reliability and performance you need to protect your home and loved ones while protecting your personal safeguards as well. Whether you're a novice or a veteran shooter feel safe with Remington. Specifications for Remington Ultimate Defense Shotshell .410 Bore 4 Pellet 2.5in Shotgun Buckshot Ammunition: Manufacturer: Remington Gauge: .410 Number of Rounds: 15 Shell Length: 2 1/2 in Muzzle Velocity: 1225 ft/s Application: Personal Defense Shot Size: 000 Buck Shot Material: Lead Primer Style: Centerfire Cartridge Case Material: Plastic Shotgun Pellet Count: 4 Lead Free: No Package Contents: Remington Ultimate Defense Shotshell .410 Bore 4 Pellet 2.5in Shotgun Buckshot Ammunition What is Remington Ultimate Defense Shotshell .410 Bore 4 Pellet 2.5in Shotgun Buckshot Ammunition good for? The manufacturer says that it is good for personal defense.Remington 20697: Ultimate Defense Shotshell .410 Bore 4 Pellet 2.5in #000 Buck Centerfire Shotgun Buckshot Ammo 15 Rounds