PPU 5.56X45 55 FMJBT RNGMSTR. 56x45 RangeMaster FMJBT 55gr Metal Can 1000 Rounds Specifications for PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR: Manufacturer: PPU Caliber: 5.56x45mm NATO Number of Rounds: 1000 Bullet Type: Full Metal Jacket Boat Tail (FMJBT) Bullet Weight: 55 grain Cartridge Case Material: Brass Muzzle Velocity: 3240 ft/s Muzzle Energy: 1282 ft-lbs Application: Training Included Accessories: None Primer Style: Centerfire Case Material: Brass Package Contents: PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR 1000 RD What is PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR good for? The manufacturer suggests that it is suitable for training.PPU PPRM5561M 5.56X45 55 FMJBT RNGMSTR 1000 RD