CheyTac Intervention
The CheyTac Intervention is an American bolt-action sniper rifle manufactured by CheyTac USA, which can also be classified as an anti-materiel rifle. It is fed by a 7-round detachable single-stack magazine (an optional 5-round magazine is also available). It is specifically chambered in either .408 Chey Tac or .375 Chey Tac ammunition. CheyTac Inc. states that the system is capable of delivering sub-MOA accuracy at ranges of up to . It is based on the EDM Arms Windrunner. Design details. The CheyTac system consists of three major components: 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. 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 individually 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. Muzzle devices. The M200 Intervention features the McArthur PGRS-1 muzzle brake, which can be used to reduce recoil. 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 and for easy 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 (LRSS) and are linked to the ballistic computer. It provides all necessary data and calculations for accurate long range firing. 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 limited to official customers like military forces and come with a detachable box magazine and a  telescopic stock, whilst the 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 (Carbon Fiber) is a modern rendition of the M200 Intervention. CheyTac utilized lightweight materials such as aluminum and carbon fiber to create a lightweight and portable sniper rifle. The M300 Intervention (Carbon Fiber) 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 (custom lengths are also available), 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  (Composite) is a civilian/sporting variant of the M300 Intervention (Carbon Fiber). It is well suited under challenging terrains due to its lightweight build. The M300 Intervention (Composite) 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 (custom lengths are also available), 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.