Revolver in position on
Courtesy of St. Petersburg
College Firing Range
Trigger weights are the most commonly used method of determining trigger pull. The system consists of a shaped rod and different sizes of metal weights (usually ¼, ½, 1, 2, and 5 pounds) placed on a flat surface (rest).
The steps in measuring trigger pull with trigger weights are as follows:
- For single-action trigger pull, cock the firearm. For double-action trigger pull, do not cock the firearm.
- Place the trigger under the top portion of the rod.
- Slowly lift the firearm upward with the rod, bringing force on the trigger.
- If the weights come off the rest without the firearm discharging, add more weight to the rod.
- If the firearm discharges before the weights come off the rest, remove weight from the rod.
- Continue until the least weight required to cause the firearm to discharge without the weights leaving the rest is determined.
Click here to watch a trigger pull demonstration
Courtesy of Florida Department of Law Enforcement, Tampa, FL