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Impressive! What if the squib is really stuck?
http://www.remtek.com/arms/hk/civ/usp/usp.htm
Quote:
The testing process of the USP, already extreme, exceeded strict NATO AC-225 Military Specification Standards and in many ways mirrors the regimen the HK Special Operations Pistol was subjected to by US Government testers. The barrel of the USP is cold-hammer forged from a high-grade chromium steel - the same type of steel used in cannon barrels. For increased velocity and longer barrel life, all USP barrels now have a polygonal profile. During testing, a bullet was deliberately lodged in a USP barrel. Another cartridge was then fired into the obstructing bullet. The second bullet cleared the barrel, resulting in a barely noticeable bulge. The pistol was then fired for accuracy and the resulting group measured less than 2 1/2 inches at 25 meters.
Other less destructive tests reveal much about USP reliability and durability. Function testing a wide selection of ammunition types, one test gun fired more than 10,000 rounds without a single malfunction. That means no stovepipes, no failures to feed or eject; no jams! Endurance firing of test samples has passed 24,000 rounds of high performance .40 S&W ammunition without any parts failures. Severe temperature tests required the USP be frozen at -44°F (-42°C) and then fired, frozen again, quickly heated to 153 F° (67°C), and then fired again. These temperature spectrum tests were continually repeated with no adverse effects on the USP.
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发表于 2014-7-27 08:02