What Is Dry Fire Practice?
Dry fire is the practice of “firing” a firearm without ammunition. That is, to pull the trigger and allow the hammer or striker to drop on an empty chamber. Dry fire practice will help refine your trigger control. It will pay off with huge dividends when you go back to the gun range. Dry fire techniques are discussed further below.
Most modern firearms are mechanically safe to dry fire, however certain firearms can easily be damaged if the firearm’s trigger mechanism is fired on an empty chamber. Damage can be prevented by using simulated ammunition generally referred to as “Snap Caps”, discussed further below.
The Savannah Arsenal Project 