The PU scope (ПУ, прицел укороченный, 'Scope short-cut' in comparison to PE/PEM telescopic sight) is a 3.5×21

telescopic sight A telescopic sight, commonly called a scope informally, is an optical sighting device based on a refracting telescope. It is equipped with some form of a referencing pattern – known as a ''reticle'' – mounted in a focally appropriate po ...

Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

manufacture, widely used since 1940 on the

SVT-40 The SVT-40 (Samozaryadnaya Vintovka Tokareva, Obrazets 1940 goda, "Tokarev self-loading rifle, model of 1940", Russian: Самозарядная винтовка Токарева, образец 1940 года, often nicknamed "'' Sveta''") is a S ...

rifle for which it was originally designed and since 1942 on the

Mosin–Nagant The Mosin–Nagant is a five-shot, bolt-action, internal magazine–fed military rifle. Known officially as the 3-line rifle M1891 and informally in Russia and former Soviet Union as Mosin's rifle ( ru , винтовка Мосина, ISO 9: ) ...

rifle. Before converting the PU for Mosin–Nagant Model 1891/30 sniper rifles these rifles used 3.87×30 PE(M) telescopic sights, a Soviet-made copy of a German

Zeiss Zeiss or Zeiß may refer to: People *Carl Zeiss (1816–1888), German optician and entrepreneur *Emil Zeiß (1833–1910), German Protestant minister and painter Companies *Carl Zeiss AG, German manufacturer of optics, industrial measurem ...

design, while later rifles used smaller, simpler, and easier-to-produce 3.5×21 PU telescopic sights. The PU telescopic sight has a fixed at 3.5 power magnification. The reticle could be adjusted vertically for range, and the elevation turret is graduated from in increments. The bullet drop compensation (BDC) adjustment in the elevation turret is free spinning under grease friction. The windage adjustment turret of the telescopic sight features more conventional click adjustments in

milliradian A milliradian ( SI-symbol mrad, sometimes also abbreviated mil) is an SI derived unit for angular measurement which is defined as a thousandth of a radian (0.001 radian). Milliradians are used in adjustment of firearm sights by adjusting ...

increments. The design turned out to be so successful and in demand that production was not stopped after World War II and the sight was converted for and used on other small arms.PU scopes. General overview
/ref> While it has been claimed that Soviet optical instrument makers attempted to create a 6× version of the telescopic sight, this has been refuted. An after-market objective lens, known as the PU Magnifier (''PUM''), is able to give the PU telescopic sight a 6.5× power.

Technical specifications

Magnification Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a calculated number also called "magnification". When this number is less than one, it refers to a reduction in siz ...

: 3.5× *

Objective Objective may refer to: * Objective (optics), an element in a camera or microscope * ''The Objective'', a 2008 science fiction horror film * Objective pronoun, a personal pronoun that is used as a grammatical object * Objective Productions, a Brit ...

diameter: 21 mm *

Field of view The field of view (FoV) is the extent of the observable world that is seen at any given moment. In the case of optical instruments or sensors it is a solid angle through which a detector is sensitive to electromagnetic radiation. Humans a ...

: 4° 30′ *

Exit pupil In optics, the exit pupil is a virtual aperture in an optical system. Only rays which pass through this virtual aperture can exit the system. The exit pupil is the image of the aperture stop in the optics that follow it. In a telescope or compoun ...

: 6 mm *

Eye relief {{Short description, Optical instrument The eye relief of an optical instrument (such as a telescope, a microscope, or binoculars) is the distance from the last surface of an eyepiece within which the user's eye can obtain the full viewing angle. ...

: 72 mm * Limiting

optical resolution Optical resolution describes the ability of an imaging system to resolve detail, in the object that is being imaged. An imaging system may have many individual components, including one or more lenses, and/or recording and display components. ...

: 17 SOA * Weight: 0.27 kg * Length: 169 mm

Gallery

File:PU sight Reticle.png, The PU 'German style'

reticle A reticle, or reticule also known as a graticule, is a pattern of fine lines or markings built into the eyepiece of an optical device such as a telescopic sight, spotting scope, theodolite, optical microscope or the screen of an oscilloscope, ...

File:Ćwiczenia Armii Andersa w ZSRR 1942.jpg, Russian

semi-automatic battle rifle with PU 3.5×21 sight File:Sniper Rifle Mosin 1891 30-fr.png, Russian Model 1891/30 sniper rifle with PU 3.5×21 sight File:Mosin pu hungarian M52.jpg, Hungarian M/52 sniper rifle with PU 3.5×21 sight

External links

Brief overview
Firearm sights of the Soviet Union {{firearm-stub