Ammunition Specifications Caliber: 32 Auto Bullet Weight: 71 GR Bullet Type: TMJ Case Type: Aluminum Quantity: 50 Rounds Per Box Blazer(R) ammunition is a great alternative to reduce the cost of practice shooting, while still giving shooters the quality and reliability they need. If you want great, dependable ammunition, without the high-end cost, this 9mm ammo from Blazer(R) is your best choice. The cases are made from aircraft-grade aluminum, which is heat-treated and provides the same great performance of brass-case ammo at a more economical price. Loaded with quality bullets and reliable ignition primers Greatly reduces the cost of practice