All shooters know that exciting things happen when we pull the trigger and touch off the primer in our pistol. The chain of events is very dynamic as the firing pin ignites the shock-sensitive primer, which then ignites the powder charge. The powder burns and creates 200-250 times its volume in gas in .020 (1/50th) second. That is pretty fast indeed. The high-pressure gas sends the bullet downrange at about 1,000 feet per second, and the pistol then completes the seven steps of the cycle of operation (Firing, Unlocking, Extraction, Ejection, Feeding, Chambering and Locking) in about 1/20th of a second. That is too fast for the eye to see exactly what is happening. We will examine each step in the cycle of operation, so that the shooter can accurately determine the cause of the malfunction / stoppage and take corrective action.
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