In feature films, situations are quite popular when a character opens a door lock with a shot. 
Inquiring minds must have wondered whether it is possible to open a door in this way in real life?
Which castles will we shoot?
Today, there are a lot of enthusiasts and professionals who have conducted a similar experiment. Typically, two types of mechanisms are considered: mortise (pin cylinder and lever - they are the most common), as well as a padlock with a shackle.
A cylinder mechanism is a structure whose working part is represented by a cylinder with several spring-loaded pins passing through it. Each of these pins is divided into two parts of different lengths. 
Cylinder mechanism
If you insert a key that is not yours into the lock, the pins will stick out in different directions. The “native” key brings the pins into one line at the border between the cylinder and the body, allowing the structure to turn easily. This is perhaps easier to see in a picture than to explain.
A lever mechanism is a door lock that has a package of lever plates with figured cutouts instead of a cylinder. When trying to open the lock, they are pushed by the ridges on the key bit. 
Level mechanism
The padlock mechanism may include any of the above two types.
Key to all doors
The television program “Galileo” conducted an interesting experiment in opening locks.
In the broadcast, shots were fired at the locks with a 9 mm pistol cartridge. One shot into the core of the mechanism, one into the bolt (bolt). 
The result of the Galileo experiment
Both in the case of a cylinder and a lever lock, it was not possible to open the door. The mechanism was deformed, but did not give in. Then meticulous experimenters “lowered” the entire clip through the lock, firing it along the contour and then into the bolt. Only after this the castle was destroyed and the door was opened.
The experience with padlocks was carried out by a blogger from Destruction Ranch. The mechanisms only succumbed to large-caliber weapons and sniper rifles. Smaller calibers only jammed the mechanism. Even the shackle, the most vulnerable part of the lock, did not succumb to the bullets. 
The result of a .50 caliber shot at Wrecking Ranch. Only the lock body plates remain
Thus, it is possible to destroy a door lock with a shot if it is a shot from a large-caliber weapon. In real life, no one uses this method of opening doors. This is ineffective and there is a risk of ricochet.
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