Have you ever wondered how a recoilless rifle works? These guns are unique in that they use the forward motion of the projectile to cancel out the recoil from the gun. In this blog post, we will take a closer look at how these rifles operate and explore the science behind them!

So How a Recoilless Rifle Works?

To start, let’s take a look at the basic anatomy of a recoilless rifle. These guns consist of three main parts: the launcher, the projectile, and the propellant. The launcher is essentially just a tube that houses the other two components. The projectile is fired from this tube and contains both the explosive charge and the guidance system. The propellant is a type of rocket fuel that provides thrust to push the projectile out of the launcher.

When you pull the trigger on a recoilless rifle, it ignites the propellant which creates a powerful explosion. This explosion generates exhaust gasses which flow through vents in the back of the projectile. These gasses push against (or recoil)the rear of the projectile. However, as we just mentioned above, there are openings in this part of the gun which allow some exhaust gasses to escape outwards instead of pushing on it from behind.

The back half of a recoilless rifle is hollow and then vented at regular intervals down its length by slots cut into both sides near where they meet each other (the “barrel”). When ignited gas escapes through these small openings along with hot air that has been heated up inside them due to friction during firing time before being ejected from an exit hole at their base – creating additional thrust forward without adding any extra recoil backwards like normal projectiles would do if left alone!

These rifles work so well because they use Newton’s Third Law of Motion to their advantage. In physics, this law states that for every action there is an equal and opposite reaction. This means when something pushes in one direction, it creates a force pushing back on itself -or- what goes up must come down!

For example: if you push against the ground with your foot while standing still (action), then gravity will pull down on you as well (reaction). You’ll notice this happen most noticeably when walking or running because even though we’re exerting energy by moving our legs forward continuously throughout each step cycle , momentum causes us not only remain stationary but also fall backwards instead of gaining any height off the ground due to inertia changing directions halfway through each stride period which means landing too far forward each time (see video below).

In the case of a recoilless rifle, the action is the explosion of the propellant. This creates a force that pushes the projectile out of the launcher. The reaction is the recoil from this explosion. By using vents in the back of the projectile, some of this recoil is canceled out. This allows the rifle to be fired without causing too much damage to it or to the person firing it.

Now that we know how a recoilless rifle works, let’s take a look at some of its benefits and drawbacks!



One advantage is that it’s easier on your body than other types of guns because there isn’t any recoil. Another benefit is its ability fire indirectly through walls or around corners. However, its range is limited because of the barrel design. Additionally, it can be very loud when fired.

These rifles have been used in many different conflicts throughout history. Some of the most famous examples are the American M40A rifle and the British PIAT launcher.

What is the point of a recoilless rifle?

A recoilless rifle is a gun that doesn’t have any recoil. This means that it can be fired without having to worry about the kickback or force of the explosion pushing the gun back and making it difficult to control. Recoil is actually what makes traditional guns so difficult to fire, as you have to account for the movement of the gun itself as well as the projectile. By getting rid of recoil, recoilless rifles make it much easier to aim and fire accurately.

There are two main types of recoilless rifles: those that use gas pressure to expel the projectile from the barrel, and those that use an explosive charge to do so. Both designs have their own advantages and disadvantages, but they both work on the same basic principle: eliminating recoil.

Are recoilless rifles rifled?

The barrels of recoilless rifles are not rifled, as the bullets travel too fast for the spin to have any effect. Instead, grooves are cut into the barrel to impart a stabilizing gyroscopic force on the bullet. This keeps it from tumbling in flight and increases accuracy.

Are recoilless rifles more accurate than regular guns?

Yes, they typically are more accurate because the lack of recoil means that there is less movement of the gun barrel during firing. This results in greater consistency when shots are fired, which leads to improved accuracy over time. Additionally, many recoilless rifle designs incorporate muzzle brakes or compensators to further reduce recoil and improve shot placement.

Does the US Army still use recoilless rifles?

Recoilless rifles are usually used for anti tank and infantry support, but they are not in use by the US Army anymore. The last official recoilless rifle issued to American soldiers was the M18 Recoilless Rifle (RR), manufactured during WWII and Korea as a substitute for mortars, grenade launchers and sub machine guns. But it did not see action during Vietnam because of better weapons developed at that time.

The M18 RR was designed for short range, low trajectory fire missions with a maximum range of about 600 metres. It had a smooth bore barrel and fired high explosive anti tank (HEAT) rounds. The gun fired the round at a muzzle velocity of 122 m/s and could penetrate up to 150mm of armor plate.

It weighed 27kg without ammunition, 81cm long and its diameter was 12cm. The effective range is around 500 meters but it can reach out to 1000m depending on conditions such as temperature, humidity etc.. One disadvantage though is that recoilless rifles require more time in setup than mortars which makes them less ideal when speed matters most – like during an ambush situation or surprise enemy attack where every second counts.