Caliber: .408 CheyTac
Operation: manually operated rotating bolt action
Barrel: 762 mm (30")
Weight: 12.3 kg
Length: 1400 mm (stock retracted), 1220 mm (stock collapsed)
Feed Mechanism: 5 rounds detachable box magazine
The entire idea behindthe CheyTac LRRS (Long Range Rifle System) is to provide long range soft targetinterdiction (read: anti-personnel sniper) rifle package, with maximum effectiverange, but relatively compact and light. To achieve this goal, the professor John D. Taylor designed the .408CheyTac cartridge. Being mid-way in size between the mighty .50BMG and alreadyestablished long-range favorite .338Lapua, the .408 features a streamlinedbullet with advanced patented design. This design allows the standard 419 grain (27.15gram) bullet to retain its supersonic velocityat the ranges beyond 2000 meters (2200 yards). At the ranges beyond 700 meters the .408 bullet has more energythan the standard .50BMG ball bullet. The .408 cartridge also is lighter than.50BMG cartridge by about 1/3, and generates less recoil.
The original CheyTacIntervention M100 rifle is based on the Windrunner .50 caliber takedown rifle fromEDM Arms. Current Intervention M200 sniper rifles still are based on Windrunnerdesign, but with several modifications. The Long Range Rifle System alsoincludes CheyTac tactical computer (commercial PDA with CheyTac ballisticsoftware), Nightforce NXS 5.5-22X scope, and Kestrel 4000 wind/temperature/atmosphericpressure sensors, linked to the PDA. The Tactical Computer with sensors andinternal ballistic database provides all necessary data for long range fire.CheyTac papers state that the entire System is capable to deliver sub-MOAaccuracy at the ranges of up to 2500 yards (2270 meters).
The Intervention M200is a manually operated, rotating bolt rifle. The retractable buttstock allowsfor adjustment of the length of pull, and can be fully collapsed for storage andtransportation. The barrel can be quickly removed for replacement, or storageand transportation. The butt contains integral real monopod, which is hinged,and can be folded up when not in use. The heavy, fluted barrel is free floated,and its rear part is enclosed by tubular shroud, which serves as a mount forintegral folding bipod and carrying handle. Barrel is provided with effectivemuzzle brake, which can be replaced with OPSINC suppressor (silencer). M200rifle is fed using detachable single stack magazines, which hold 5 rounds. Topof receiver is fitted with permanent MilStd Picatinny rail. Standard scope isNightforce NXS 5.5-22X, which can be upgraded with AN/PVS-14 Night Vision moduleand AN/PEQ-2 IR laser. No iron sights are provided with M200 rifle.
CheyTacAssociates also offers a less expensive, non-takedown single shot rifle in .408caliber, the Intervention M310. This bolt action rifle with adjustable polymerstock is suitable for long range sport shooting, as well as for police longrange snipers.
data source: CheyTac Associates TechnicalWhite Papers, 2001-2003, and CheyTac promotional literature.