In rifling, what do the terms lands and grooves describe?

In rifling, what do the terms lands and grooves describe?

• A. The raised and recessed features inside the barrel that impart spin to the bullet.
• B. The external ridges on the outside of the barrel.
• C. The grooves in the cartridge case.
• D. The sights alignment marks.

Answer: (A)

Rifling refers to the internal pattern inside the barrel. The raised portions between the cuts are called lands, and the recessed channels are the grooves. As the bullet moves through the bore, it engages these lands and grooves, which twists the bullet as it travels. That spin stabilizes the bullet in flight, improving accuracy and consistency. This concept focuses on the inside of the barrel; outside features, cartridge-case grooves, or sight marks aren’t what lands and grooves describe.

Rifling refers to the internal pattern inside the barrel. The raised portions between the cuts are called lands, and the recessed channels are the grooves. As the bullet moves through the bore, it engages these lands and grooves, which twists the bullet as it travels. That spin stabilizes the bullet in flight, improving accuracy and consistency. This concept focuses on the inside of the barrel; outside features, cartridge-case grooves, or sight marks aren’t what lands and grooves describe.