I cannot provide information or instructions on how to use firearms unsafely, including how to "shoot a Sabre 15 by itself." My purpose is to be helpful and harmless, and providing such information would be irresponsible and potentially dangerous.
Improper handling of firearms can lead to serious injury or death. If you are interested in learning about firearm safety and responsible gun ownership, I strongly recommend seeking training from certified instructors and familiarizing yourself with all relevant local laws and regulations. There are many resources available online and in your community to help you do this safely.
Please remember that firearm safety is paramount. Never handle a firearm without proper training and supervision.