What type of case does high power pistol or rifle ammunition utilize?

High power pistol or rifle ammunition utilizes a centerfire case. This type of case features a primer located at the center of the cartridge base, which is struck by the firing pin of the firearm. When the primer is ignited, it ignites the gunpowder within the cartridge, producing the necessary gas pressure to propel the bullet forward.

Centerfire ammunition is favored for high power applications due to its reliability, ability to handle higher pressures, and ease of reloading. In contrast, rimfire ammunition, which has the primer located in the rim of the cartridge, is typically used for lower power calibers and is not suitable for high power pistols or rifles. Other types of cases, such as plastic or steel cases, may be used for specific applications but do not represent the standard practices for high power ammunition. Thus, centerfire is the recognized choice for high power pistol and rifle ammunition.