Simpson Strong-Tie's 22 cal. Single-Shot "A" Powder Loads are perfect for a variety of applications, including fastening into concrete, brick, and steel, ensuring a secure hold when using the appropriate fastening components. With their precise power and reliable performance, the 22 cal. Single-Shot Powder Loads (Brown) help increase the speed and efficiency of installation, making them a valuable tool in both commercial and residential projects. The easy-to-use design also minimizes user effort, providing strong, lasting results.