What is the first step when testing a firearm's fire control group with snap caps?

When testing a firearm's fire control group with snap caps, the first step is to set the safety in the "safe" position. This is essential for ensuring safety during the inspection process. By positioning the safety to "safe," you reduce the risk of accidentally discharging the firearm, which is critical given that you are conducting a test that involves manipulating the trigger and other fire control components.

This precaution is necessary regardless of using snap caps, as the primary goal is to simulate the cycle of firing without the risk of an actual discharge. Once the safety is properly engaged, it becomes appropriate to proceed with the testing process, including manipulating the trigger and inspecting the mechanism.

Setting the safety to "fire" or attempting to depress the trigger without ensuring the weapon is safe could lead to an unsafe environment. Additionally, ejecting the snap cap is not part of the initial steps required for testing the fire control group; it would typically occur after the function testing has been completed to check for any malfunctions during the test.