CCI Standard Primers For Sale. CCI Standard Primers are a type of firearm primer manufactured by CCI (Cascade Cartridge Inc.). They are used to ignite the gunpowder in a cartridge, producing the hot gases that propel the bullet from the firearm’s barrel. CCI Standard Primers are known for their consistent ignition and performance, and are suitable for use in a variety of different firearms, including rifles, handguns, and shotguns. They come in different sizes, based on the caliber of the firearm for which they are intended, and are available in large quantities from most major ammunition manufacturers. CCI Standard Primers are designed to be reliable and long-lasting, and are widely used among hunters, competitive shooters, and recreational shooters. Overall, CCI Standard Primers are a trusted and widely-used choice for those looking for a high-quality primer for their firearms.