The CheyTac Intervention is an American bolt action sniper rifle manufactured by CheyTac for long range soft target interdiction. It is fed by a detachable single stack magazine, which holds 7 rounds. It fires .408 CheyTac or .375 CheyTac ammunition. CheyTac papers state that the entire system is capable of delivering sub-MOA accuracy at ranges of up to 2,500 yards (2,300 m), one of the longest ranges of all modern-day sniper rifles.
Advanced Ballistic Computer
The CheyTac Advanced Ballistic Computer (ABC) System software package was developed to enhance the long range predictive capabilities of a sniper’s handheld computer. Its predictive capabilities are based on actual bullet flight data derived from test sessions on the high speed Weibel 1000e Doppler Radar at the U.S. Army Proving Grounds, Yuma Arizona. Engineers created algorithms that utilize both known mathematical ballistic models as well as test specific, tabular data in unison.
The system provides the operator with a simple elevation and windage solution through complete integration of external environment, operator, and gun system specifications, enabling small arms weapons operators to produce highly accurate long-range trajectories to any number of specified targets at extreme ranges.
The software package operates on variety of consumer, hardened and mil-spec R-PDAs running the Windows Mobile 2003 operating system, using input from the Kestrel handheld weather station and Vector IV laser rangefinder binoculars.
When rounds are used for which actual Doppler Radar established bullet flight data was not available for the engineers to incorporate in the software package, the ABC System has to rely on mathematical ballistic models like all other ballistic prediction computer programs, impairing the long range predictive capabilities of the software package.
The Intervention holds the world record for best group at a distance, landing 3 bullets within 16⅝ inches (42 cm) at 2,321 yards (2,122 m) near Arco in Idaho.
On the TV show Future Weapons episode “Massive Attack” the host Richard Machowicz, a former United States Navy SEAL, made 3 out of 6 shots hit a human sized sheet of metal at a distance of 2,530 yd (2,313 m) at Arco Pass in Idaho.
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