An interesting point that makes sense to mention – cartridge rotation. It is relevant for police officers who carry weapons of daily use, but it also makes sense to take note of all those who daily discharge – loads a weapon, and loves to carry a loaded cartridge in the barrel without shooting.
Below is a great example of how to be prepared for the most unpredictable and dangerous situations. Train to avoid catastrophic mistakes. Go home at the end of duty.
The following recommendations were sent from the Georgia State Police Department in 2011.
In September of this year, a police officer was involved in a situation that required the immediate use of weapons to kill. When the officer made the decision to shoot – the sent cartridge in the barrel misfired. Fortunately, the officer applied the skills learned in training, quickly eliminated the malfunction and the skirmish ended for him successfully.
The cartridge, which gave a misfire, which had a dent from the striker, was sent to the manufacturer for analysis. The results were as follows: “The reason for the misfire was that the capsule mixture was dislodged from the capsule, as a result of frequent charge-discharge cycles of the cartridge.” We also sent another 2000 cartridges of Winchester 9mm, which the police used daily. All 2000 rounds were successfully shot out.
In a conversation with an officer, we learned that due to the fact that he had a small child at home, the officer daily discharged weapons after the service. He took out the cartridge, sent to the barrel, for security reasons. Before going on duty, he would send the top cartridge from the magazine to the barrel, and the cartridge taken out the previous day would be inserted into the magazine. Thus, 2 rounds participated in the rotation daily. For the period of February or March 2011, the rotation was already about 100. This caused internal damage to the cartridge, which apparently was not noticeable.
The recommendation is that all responsible personnel use a rotation of cartridges. We also remind you that when you load a weapon, charge it from the magazine and do not push the cartridge into the barrel directly through the cartridge ejection window. If the only option to ensure the safety of the officer’s weapons storage at home is to defuse, then remove the cartridges from the entire store and use the rotation. In addition, you should use the rotation of all 3 duty shops, so that all 52 cartridges in them cyclically move, and not change a pair of cartridges in places (in case you are confused by the figure 52, keep in mind that the police will send the cartridge from the store to the barrel , take out the shop and insert 1 more cartridge – a comment of the translator). The most practical method of storing weapons at home is to use a fuse and a locker with a lock.
Next, a note from ATF Firearms Technology
Detachment of the capsule mixture is a risk that arises during constant cycles of the chuck in the barrel and its discharge. Another risk is bullet subsidence, which increases the pressure in the barrel and often leads to very negative effects.
In addition to all of the above, it is necessary to dispose of ammunition that was used in training for charging weapons, as well as those that have been sent to the barrel more than two times.
This practice will reduce the likelihood of failure of cartridges or more disastrous results. ”
A small video in the subject (in English), what is bullet dropping and why not to send a cartridge into the barrel through the cartridge ejection window: