CheyTac Intervention


The CheyTac Intervention is an American bolt-action sniper rifle manufactured by CheyTac LLC, which can also be classified as an anti-materiel rifle. It is fed by a 7-round detachable single-stack magazine. It is specifically chambered in either.408 Chey Tac or.375 Chey Tac ammunition. CheyTac LLC states that the system is capable of delivering sub-MOA accuracy at ranges of up to, one of the longest ranges of all modern-day sniper rifles. It is based on the EDM Arms Windrunner.

Design details

The CheyTac system consists of three major components:
  1. .408/.375 CheyTac ammunition
  2. CheyTac "XTreme Long Distance™" Rifle
  3. CheyTac Advanced Ballistic Computer
The CheyTac M200 Intervention is a manually operated, rotating bolt sniper rifle. It features a Picatinny rail on the top of its receiver for mounting various optical sights.

Cartridge

The M200 Intervention is chambered in either the.408 CheyTac or.375 CheyTac cartridge. CheyTac specially developed the.408 CheyTac/.375 CheyTac cartridge for long-range use. The cartridge is optimized for accuracy by a balance of the rotational and linear drag, which reduces yaw and precession, and keeps the tip of the projectile pointed along the trajectory.

Ammunition feeding

The M200 Intervention is fed through a detachable 7 round box magazine, an optional 5 round box magazine is also available. Alternatively cartridges can be loaded singly directly into the chamber.

Barrel

The M200 Intervention uses a free floating heavy-fluted barrel, which can be quickly removed for replacement or storage and transportation, and the shroud at the rear serves as a mount for an integral folding bipod and a carrying handle.
To achieve balanced flight the rifling twist rate for the.408 CheyTac chambering was chosen at 330.2 mm, with eight 0.4080 in diameter grooves, 0.4010 in diameter bore and a 0.050" land width, square cut, with no taper. The later.375 CheyTac round, developed from the.408 CheyTac, uses a 292 mm rifling twist rate.

Muzzle devices

The M200 Intervention features the McArthur PGRS-1 muzzle brake, which can be used to reduce recoil. It was designed by a gunsmith and firearm inventor, Bruce McArthur, owner of The Flint & Frizzen Gun Shop in Clarkston, Michigan. The muzzle brake is also removable and can be replaced by an OPSINC suppressor.

Buttstock

The M200 Intervention has a collapsible and retractable buttstock that is adjustable for length of pull for ease storage and transportation. The buttstock also contains an integral rear monopod, which is hinged, and can be folded up when not in use.

Day and low light optical sights

There are two different day optical sights available for the M200 Intervention. The standard optical sight is the Nightforce NXS 5.5-22x56 variable magnification telescopic sight with a 56 mm objective. The alternative optical sight is the US Optics SN-9. The night vision system is the AN/PVS-14 GEN III Pinnacle monocular, which attaches to the day optic using the Monoloc device. An AN/PEQ-2 infrared laser provides additional lighting in low-light conditions. The device is attached to a titanium strut.

Accessories

The M200 Intervention comes with a portable advanced ballistic computer, laser rangefinder binoculars and meteorological and environmental sensor package. All these components, together with the sniper rifle, are part of the CheyTac Long Range Sniper System and are linked to the ballistic computer. It provides all necessary data and calculations for accurate long range firing.

Records

The Intervention holds the world record for best group at a distance, landing 3 bullets within at near Arco in Idaho.
On the Discovery Channel TV show Future Weapons April 9, 2007, episode "Massive Attack" the host Richard Machowicz, a former United States Navy SEAL, made 3 out of 6 shots, hitting a human-sized sheet of metal at a distance of at Arco Pass in Idaho.

Accuracy

CheyTac states that "the CheyTac LRRS is a solid anti-personnel system to." The primary intent of the.408 is as an extreme range anti-personnel system. Groups of at, at and at have been consistently obtained.
Groups of at and at have also been obtained. All groups that are up to are less than 1 minute of angle for vertical dispersion.

Variants

The CheyTac Intervention comes in several variants:
The main capability differences between the different variants are governed by barrel length which determines the obtainable muzzle velocity. Higher muzzle velocity extends the effective range of a rifle, everything else being equal. The M200 and the M200 Carbine are and were limited to official customers like military forces and come with a detachable box magazine and a telescopic stock, whilst the current other variants have a glass-fiber fixed McMillan A5 stock and are available for the general public.

Derivatives

CheyTac M300 Intervention (Carbon Fiber)

The CheyTac M300 Intervention is a modern rendition of the M200 Intervention. CheyTac utilized lightweight materials such as aluminum and carbon fiber to achieve a lightweight portable sniper rifle that doesn't compromise on strength, accuracy, or agility.
The M300 Intervention can be chambered in either.408 CheyTac or.375 CheyTac cartridge and uses a 7-round detachable box magazine. It has an effective range of, and a weight of. It features all of the standard features of the M200 Intervention and also features a full-length Picatinny rails at 3, 6, 9 and 12 o’clock positions for mounting various accessories, such as accuracy enhancements, a fluted barrel, a barrel twist rate of 1:13.25" twist for the.408 CheyTac cartridge and 1:11.25" twist for.375 CheyTac cartridge, a detachable muzzle brake, a fully adjustable folding buttstock that has an adjustable cheek weld, a recoil pad and an optional monopod, an adjustable pistol grip, an adjustable match trigger and flush cups for weapon sling mounting.

CheyTac M300 Intervention (Composite)

The CheyTac M300 Intervention is a civilian/sporting variant of the M300 Intervention. It is well suited under challenging terrains due to its lightweight build. The platform has been proven in combat and long distance big game hunting, and can be maintained easily making it ideal for an extended amount of time in the field.
The M300 Intervention can be chambered in either.408 CheyTac or.375 CheyTac cartridge and uses a 7-round detachable box magazine. It has an effective range of, and a weight of. It features a Picatinny rail on the top of its receiver for mounting various optics/scopes and on the bottom portion of the front end of the handguard for optional bipod mounting, a fluted barrel, a barrel twist rate of 1:13.25" twist for the.408 CheyTac cartridge and 1:11.25" twist for.375 CheyTac cartridge, a detachable muzzle brake, an adjustable buttstock that has an adjustable cheek weld, V-Block and an optional monopod, an adjustable pistol grip, an adjustable match trigger and flush cups for weapon sling mounting.

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