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Vortex Optics is a DBA of Sheltered Wings, Inc., which was incorporated in Wisconsin in 1989. Sheltered Wings, Inc. DBA Vortex Optics began in 2002. In 2022 after extensive research, testing and reviews Vortex became an official supplier and contractor to the American Military as the U.S. Army selected Vortex‘s XM-157 fire control system for its Next Generation Squad Weapon program.
Spotting scope eyepieces are usually interchangeable to adapt for different magnifications, or may have variable zoom to give a range of magnifications. Magnifications less than 20× are unusual, as are magnifications more than 60× since the latter can lead to poorer image brightness, a narrow field of view and too much image shaking, even on ...
VORTEX2 was an expanded second VORTEX project, with field phases from 10 May until 13 June 2009 and 1 May until 15 June 2010. VORTEX2's goals were studying why some thunderstorms produce tornadoes while others do not, and learning about tornado structure, in order to make more accurate tornado forecasts and warnings with longer lead time. [ 14 ]
Non-impact protectors are those which do not pass all high-impact testing requirements and are therefore marked only with "Z87" (no "+" sign). The U.S. military standard requires (at a minimum) that ballistic eyewear can always withstand a 0.15 caliber, 5.8 grain, T37 shaped projectile at a velocity of 640 to 660 feet per second (approximately ...
Unertl Optical Company, Inc. was a manufacturer of telescopic sights in the United States from 1928 until 2008. They are known for their 10× fixed-power scopes that were used on the Marine Corps' M40 rifle and made famous by Marine Corps Scout Sniper Carlos Hathcock during the Vietnam War.
A laser designator is a laser light source which is used to designate a target.Laser designators provide targeting for laser-guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire, or the M712 Copperhead round, respectively.
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