Fiocchi Shotgun 12 Gauge 0 Grain Brass Blank Ammo 25 Rounds. They will give you the noise and realism of conventional ammunition without the projectile. 12 Ga. 2 3/4" Blank Granulated Plastic Filler Specifications for Fiocchi Shotgun 12 Gauge 0 Grain Brass Blank Ammunition: Manufacturer: Fiocchi Caliber: 12 Gauge Gauge: 12 Number of Rounds: 25 Cartridge Case Material: Brass Package Type: Box Included Accessories: None Bullet Type: Not Applicable Package Contents: Fiocchi Shotgun 12 Gauge 0 Grain Brass Blank Ammunition Fiocchi 12BLANK: Shotgun 12 Gauge 0 Grain Brass Blank Ammo 25 Rounds