Question

What is the term for the pattern of spiral impressions inside a handgun?

A) rifling
B) ejector markings
C) lands and grooves
D) extractor markings

Answer 1

It's called rifling, to stabilise the bullet.

Answer 2

The correct choice is

A) rifling

Rifling is a pattern of sequence of raised and recessed portions. These raised portions are known as lands and recessed portions as grooves. these lands and grooves helps in providing spin to the bullet as it is fired. This spin makes the bullet to penetrate deeper into the target and cause severe damage.