M240 Rate Of Fire - Last updated: 08-Aug-2004 Copyright ©2004 Gary W. Cook To the best of my knowledge all military data and images presented in this page are unclassified, non-sensitive and approved for public release. Source: FM 3-22.1: Bradley Gunnery, 2003.
FM 3-22.68: Crew-served machine gun, 5.56-mm and 7.62-mm. MCWP 3-15.1: Machine guns and machine guns. "Field Artillery Journal" January–February 1977. Traced 2005 budget estimates for military weapons and combat vehicles. US Army Small Arms Group website.
M240 Rate Of Fire
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TACOM-RI. The high volume of fire from this weapon makes it the primary suppressive fire weapon for platoons and companies of infantry. The M240 is one of the most important and widely used small arms in Iraq and Afghanistan.
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The M240 entered service with the US Army. In 1977 and over the years, several variants have been developed. The M240 is an open bolt, gas operated weapon, and fires the 7.62mm x 51mm NATO round.
It often serves as a crew-served weapon. It is usually mounted on boats, trucks, and aircraft, but can also be carried in the field and mounted on a bipod or tripod. The M240 is made by FN America, a subsidiary of FN Herstal.
I mostly shoot the M240 from the mount, but we do take some training to carry it. Basically, if your vehicle or boat is disabled, you can remove the M240 from the mount and continue on if necessary.
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With an effective range of 1,100 meters, the M240 could reach the exit. The M240B is an improved version, used by several US Army units. It is a standard infantry general purpose machine gun, used by the US Marine Corps (M60E4).
It is also used by the US Navy (Mk.43) and Coast Guard. This weapon has a hydraulic buffer system, which reduces the feeling of recoil. A similar system is used on the M60 machine gun. This weapon has only one gas setting, reducing its rate of fire to 650–750 rounds per minute.
This feature reduces stress on the improved mechanism and increases the service life of the weapon. A side effect of this is that the M240B will not fire over rough terrain. Now in US Army service the M240B is being replaced by the lighter M240L.
The M2 Browning .50 cal is downright cool and a great round sling that can penetrate armor and completely destroy anything it comes into contact with. But, these benefits come at a cost. First, the weapon system is huge, and swapping hot barrels in the dark sucks — there's no other way to say it.
Newer versions have corrected this issue, but historically, the distance and time had to be given after the gun was put into a new barrel, which was also a huge pain. In conclusion, I have seen this weapon far more than at my convenience.
The Cow-17 Minigun is almost as bad, but it has its limitations. For one, it requires electrical power, which poses an obvious handicap. Furthermore, when it does get stuck, it usually sticks hard and cannot be cleaned easily.
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This is a very high maintenance gun that is not fun to clean. The sight is of the folding leaf type, with an aperture and notch at the rear, and a simple blade at the front.
The rear sight is adjustable for sight distance from 200m to 800m. The new variant has a Picatinny-type scope rail and accepts optics. The M240D is a pintle mounted version. It is an upgrade to the M240E1.
The pistol grip and butt were replaced with a shovel grip. There is also a package for this weapon. This allows the crew to divert this machine gun from a helicopter-dropped machine gun and use it as an infantry weapon.
The M240 shares many design features with the World War II-era German MG-42, including its trigger mechanism, quick-change barrel, and spring-loaded dust cover. But much of the gun derives from the basic design formula of the venerable Browning Model 1918 bar.
In fact most Belgian FN MAGs were made simply by turning the BAR receiver upside down so it could be belt fed from above rather than magazine fed from below. The M240G was developed for the US Marine Corps.
It is a variant of the M240E1, designed for coaxial use on tanks and armored vehicles. It can also be used on a vehicle pintle mount. The M240G has 3 gas settings. This allows the machine gun to fire between 650 and 950 rounds per minute.
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This feature allows the shooter to adjust the gas bleed of the action and continue firing if the weapon is severely damaged by continuous fire. It has a Picatinny type rail system. This weapon can be modified for ground use by installing a special kit.
The United States Marine Corps has converted a large number of older M240 and M240E1 machine guns to the M240G standard. This gun has a quick change barrel. The carrying handle is attached directly to the top of the barrel.
This allows the crew to quickly remove the spent barrel while it is still hot, without the need for insulated gloves to handle it. The US military has seen heavy weapons come and go. However, some seem to be perennial.
The M240 machine gun is one of those weapons that has stood the test of time. Weighing in at around 30 pounds, with a rate of fire of 650 to 950 rounds per minute, the M240 could knock down walls of lead and certainly wreak havoc on the receiving end.
The M240 B's cold hammer-forged MIL-SPEC barrel features a hard chrome bore for longer life and improved accuracy. The receiver is machined steel and equipped with a top-mounted MIL-STD-1913 optical rail. The cross bolt safety and rocker trigger help improve operator control.
All M240Bs include an additional barrel. The M240L is a lighter version of the M240B. It is developed according to the weight loss program. This weapon was previously known as the M240E6. The M240L is 2.5 kg lighter than the M240B.
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This is a massive reduction of 18% in weight. The M240L combines lightweight titanium parts and different manufacturing methods for the core construction of the components. The US Army began replacing its M240B machine guns with the M240L.
However, the weapon was not adopted by the Marine Corps due to the high cost. In my opinion, the M240 meets all the requirements you would expect from a high-performance heavy weapon. First, it's very reliable: in my experience with it, jams are uncommon and when they do occur, they're usually easy to clear - an important aspect of survivability.
Jamming the M240 feed is also easy, which allows you to keep your barrel on target and get back into the fight faster. The barrel is light and easy to replace. Lastly, their interior is not as complex, making cleaning and maintenance easier.
It is a select firearm, but does not have the ability to fire a single shot. The fire selector toggles between a rate of fire of 750 rpm, 850 rpm, or 950 rpm. However, the rate of fire is adjusted only when something goes wrong causing the weapon to become sluggish and not have time to properly clear the weapon.
Ammunition is fed by belt into the upper left side of the weapon. The M240 accepts belt links with crushed or non-crushed links. These belts are typically 50 to 250 rounds long, usually in a box or pouch.
Sometimes it is attached to the weapon itself. 50-round belts are the most widely used, and can be paired end-to-end. The FN® M240 (also known as FN MAG® or FN MAG® 58) family of medium machine guns (7.62x51mm NATO) has long been used by all services of the US Armed Forces.
The FN® M240B is a "go/can go" medium machine gun for all branches of the US military, offering absolute reliability, extended range and exceptional service life.
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