Combat Reload Process for Rifles and Recoil in Rifles
What is the correct combat reload process for rifles?
1) Insert new magazine, release bolt catch
2) Eject empty magazine, insert new magazine, charge the rifle
3) Remove empty magazine, insert new magazine, charge the rifle
4) Pull charging handle, insert new magazine
How is recoil in rifles explained and managed in military rifles?
Correct Combat Reload Process:
The correct combat reload process for a rifle is to remove the empty magazine, insert a new one, and then charge the rifle.
Recoil in Rifles:
Recoil in rifles is explained by Newton's third law of motion and is managed in military rifles through damping mechanisms that reduce the average force exerted on the shooter.
Combat Reload Process and Recoil in Rifles
In regard to the rifle's combat reload process, of the options provided, the correct sequence is: (3) Remove empty magazine, insert new magazine, charge the rifle. The process is initiated with an empty or nearly empty magazine which must first be removed. Subsequently, a new magazine is inserted into the rifle. Finally, the rifle is charged by pulling the charging handle to chamber a round from the new magazine, preparing the rifle to fire again.
Recoil is explained by Newton's third law, which states that for every action, there is an equal and opposite reaction. When a bullet is fired from a rifle, the force that propels the bullet forward also generates an opposite force that pushes the rifle backward; this reaction is perceived as recoil. A recoilless rifle is open at both ends, which allows the explosive gases to exit from the rear as well as propelling the projectile forward, thus balancing the forces involved and minimizing the recoil felt by the shooter. Standing close behind a recoilless rifle when it is fired is dangerous due to the high-speed gases expelled from the rear.
The physics of recoil in a military rifle with a damping mechanism can be analyzed by: (a) calculating the recoil velocity of a plunger using the conservation of momentum, (b) determining the average force exerted on the plunger as it is stopped over a certain distance, and (c) comparing this force to one exerted over a shorter acceleration time to illustrate the benefits of the recoil damping system.