Is 17 cal. center fire

The .17 caliber can refer to various centerfire cartridges, such as the .17 Hornady Hornet or .17 Remington. However, the term "17 cal." alone isn't specific enough to determine if it is centerfire, as there are also .17 caliber rimfire cartridges, like the .17 HMR. Therefore, it's essential to specify which .17 caliber cartridge you are referring to.