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The amount of cracking in glass around a bullet hole will depend on a number of factors, including the type of glass, the angle at which the bullet strikes the glass, and the velocity of the bullet.
When a bullet strikes glass, it creates a small hole and a ring of cracks around the hole, known as a spiderweb pattern. The amount of cracking around the hole will depend on the type of glass and its thickness. Tempered glass, which is a type of safety glass, is designed to shatter into small, rounded pieces when it is broken, which can help to reduce the amount of cracking. Laminated glass, which is made up of two or more layers of glass with a plastic interlayer, is also less likely to crack than regular glass.
The angle at which the bullet strikes the glass also plays a role in the amount of cracking. A bullet that strikes the glass at a right angle is more likely to create a larger spiderweb pattern than a bullet that strikes the glass at an angle.
Finally, the velocity of the bullet also plays a role in the amount of cracking. A bullet traveling at a high velocity will create more cracking than a bullet traveling at a lower velocity.
In summary, tempered glass, laminated glass, bullet striking the glass at an angle, and lower velocity bullet are less likely to cause a large crack around the bullet hole.