Grease gun bullet

The utility model relates to a bullet of a grease gun, which comprises a cylindrical body 9 used for packing grease. The utility model is characterized in that the front end of the cylindrical body is provided with a tubular grease nozzle 11, wherein, the tubular grease nozzle 11 is matched and connected with a grease filling opening of a grease pump on a head of the grease gun. Outer threads 10 are arranged on the outer edge part of the tubular grease nozzle, wherein, the outer threads 10 are used for connecting inner threads of a grease filling opening of a grease pressing pump, the back side of the cylindrical body is provided with a tilting back cover 12, and the diameter of the cylindrical body is a little bigger than the outer diameter of a piston of the grease gun and is a little smaller than the diameter of a cylindrical inner cavity of a body of the grease gun. The utility model is not only clean, sanitary and convenient in use, but also is helpful for completely discharging grease in a cylinder of the grease gun when matched with a lubricating grease gun, and therefore, waste is avoided.