Traditions XBR Powerloads are made specifically for the Crackshot XBR and are the only load you should use in your Crackshot XBR rifle. The Traditions XBR Powerload is .27 Caliber Long and provides the force necessary to propel your Traditions Firebolt Arrow downrange out of your Crackshot XBR. Traditions XBR Powerloads come in a pack of 100 so you can enjoy shooting your Crackshot XBR.