Question

The fine horizontal scratches etched onto a bullet after it has been fired are called?

Answer 1

The fine horizontal scratches etched onto a bullet after it has been fired are called Striations.

What is Striations?

• Striations are the minute differences in the curve of the bullet's surface. The bullet and the gun barrel are the harder and softer materials, respectively, in firearms evidence.
• The striations left on the fired bullet are used as a comparison by firearm examiners.
• When a gun is discharged, the bullet blasts down the barrel where it strikes ridges and grooves, spinning and improving shot accuracy.
• These ridges cause striations in the bullet's soft metal by digging into it.
• An examiner analyses these distinctive markings to verify whether a given bullet was shot from a specific firearm.
• A barrel will produce individual markings in addition to a bullet's land and groove impressions as the projectile passes through.

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