Simpson Strong-Tie Green 0.22-Caliber Single-Shot A Crimp, LVL 3, 100 Shot loads are specially designed for use with PT-22A, PT-22HA tools, and other common low-velocity, single-shot powder-actuated tools. These green 0.22-caliber single-shot loads come in convenient packs of 100 and deliver level 3 power, ensuring consistent performance for light and medium-duty fastening applications in concrete, masonry, and steel. for both professional contractors and DIY enthusiasts, these loads provide efficient and reliable fastening every time. Model Number: P22AC3A