Snipers Zero-In On Longer-Range Kills
Mar 3, 2010 - In 1967, U.S. Marine Corps sniper Carlos Hathcock took a 2,250-meter (7,382-ft., or 1.4-mi.) shot in Vietnam and made the longest sniper kill ever. Hathcock’s record stood for 35 years until two Canadian snipers, operating in the Shah-i-Kot Valley of Afghanistan, set new marks for long-range kills on the same afternoon—2,310 and 2,430 meters, also with 50-caliber rifles, in both cases McMillan Tac-50 Long Range Sniper Weapons...
...The 50-caliber rifle, for example, is effective because its bullets have high muzzle velocity (around 2,800 fps.) that maintains trajectory and achieves an effective range of 2,000 meters. The rifle, though, is heavy (25-30 lb.) and not suited for every situation. Lighter rifles with few tradeoffs in power and range are as effective against most targets.
One such is the 338-caliber rifle. When paired with the Lapua magnum cartridge, which was designed for snipers, the 338 fires the bullet with muzzle velocity near 3,000 fps. Tom Irwin, director of Accuracy International (AI), a British manufacturer of sniper rifles, says the bullet stays supersonic to 1,400 meters and achieves “a flatter trajectory than anything else,” giving it “reasonable accuracy” to 2,000 meters...
...Another factor is high-tech optics. “The quality and power of optics are playing a more important role,” says Sylvia Ehinger, military sales and business development representative for U.S. telescopic sight maker Schmidt and Bender. “If you can’t see that far, you can’t hit your target.”
The PSR solicitation for optics was released in February, and Ehinger says the draft specification calls for 5-25X sights. Most sniper scopes, by contrast, use 4-16X sights.
There is demand for other enhanced optics such as thermal imagers that attach on a rail in front of the telescopic sight. Ehinger says that eventually telescopic sights will integrate ballistic calculators (now handheld) and laser rangefinders to improve accuracy. “Everything will be inside a scope.”
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