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approx. 700 (Nov. 2010) [1] Website. www.leupold.com. Leupold & Stevens, Inc. is an American manufacturer of telescopic sights, red dot sights, binoculars, rangefinders, spotting scopes, and eyewear located in Beaverton, Oregon, United States. The company, started in 1907, is on its fifth generation of family ownership.
A Weaver rail mount is a system to connect telescopic sights (often via a scope mount) and other accessories to firearms and certain crossbows. [1] It uses a pair of parallel rails and several slots perpendicular to these rails. The later Picatinny rail, developed by the US military, is a development of the key concepts of the Weaver system ...
Remington Model 513. Redfield 75 rear sight & Redfield 68 globe front sight. The Remington Model 513 Matchmaster is a bolt-action rifle, manufactured from 1940 to 1968. Since the rifle was designed for target shooting, it came equipped with a sturdy half stock with sling swivels, a beavertail fore end, and a straight comb which rose at the heel.
26. +. 3⁄4 in sight radius. The M21 Sniper Weapon System (SWS) in the US Army is a national match grade M14 rifle, selected for accuracy, and renamed the M21 rifle. [ 7] The M21 uses a commercially procured 3–9× variable power telescopic sight, modified for use with the sniper rifle. [ 8] It is chambered for the 7.62×51mm NATO cartridge .
M24 sniper weapon system. 5.6 kg (12 lb) empty, without scope (M24A3). The M24 Sniper Weapon System ( SWS) or M24 is the military and police version of the Remington Model 700 rifle, M24 being the model name assigned by the United States Army after adoption as their standard sniper rifle in 1988. The M24 is referred to as a "weapon system ...
Redfield equation. In quantum mechanics, the Redfield equation is a Markovian master equation that describes the time evolution of the reduced density matrix ρ of a strongly coupled quantum system that is weakly coupled to an environment. The equation is named in honor of Alfred G. Redfield, who first applied it, doing so for nuclear magnetic ...
From left: A sketch of a cross section on a Zeiss rail and ring mount, both with a Picatinny rail interface. Scope mounts are rigid implements used to attach (typically) a telescopic sight or other types of optical sights onto a firearm. The mount can be made integral to the scope body (such as the Zeiss rail) or, more commonly, an external ...
Alfred G. Redfield (March 11, 1929 – July 24, 2019) was an American physicist and biochemist. In 1955 he published the Redfield relaxation theory, effectively moving the practice of NMR or Nuclear magnetic resonance from the realm of classical physics to the realm of semiclassical physics. [2] He continued to find novel magnetic resonance ...