Answer :
Final answer:
Shotgun barrels are designed with smooth walls to minimize friction, providing consistent shot speed and direction.
Explanation:
The question refers to the interior barrel design of shotguns. Shotgun barrels typically have smooth walls to reduce friction. This smooth surface allows the shot to travel through the barrel with as little resistance as possible, which helps to keep the speed and direction of the shot consistent upon exiting the barrel. Shotguns use a variety of barrel finishes, but when it comes to the internal surface that makes contact with the shot or slug, smoothness is key to performance and accuracy.
