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{{Short description|Soviet small arms telescopic sight}}
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[[File:Celownik optyczny PU.JPG|thumb|PU telescopic sight from above]]
[[File:Mosin pu hungarian M52.jpg|thumb|300px|right|Hungarian [[Mosin-Nagant#Hungary|M/52 rifle]] with PU 3.5x optics]]▼
The '''PU scope''' (ПУ, прицел укороченный, 'Scope short-cut' in comparison to [[PE scope|PE/PEM telescopic sight]]) is a 3.5×21 [[telescopic sight]] of [[Soviet Union|Soviet]] manufacture, widely used since 1940 on the [[SVT-40]] rifle for which it was originally designed and since 1942 on the [[Mosin–Nagant]] rifle. Before converting the PU for [[Mosin–Nagant#Russia/USSR|Mosin–Nagant Model 1891/30 sniper rifle]]s these rifles used 3.87×30 PE(M) telescopic sights, a Soviet-made copy of a German [[Carl Zeiss AG|Zeiss]] design, while later rifles used smaller, simpler, and easier-to-produce 3.5×21 PU telescopic sights.<ref>[https://www.m9130.info/pe-and-pem-sniper-scopes PE and PEM scopes. General overview]</ref> 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 {{convert|0|-|1300|m|yd|0|lk=on|abbr=on}} in {{convert|100|m|yd|0|lk=on|abbr=on}} increments. The [[Telescopic_sight#Bullet_drop_compensation|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]] 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.<ref>[https://www.m9130.info/pu-sniper-scopes PU scopes. General overview]</ref>
While it has been claimed{{who|date=July 2022}} 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]]: 3.5×
* [[Objective (optics)|Objective]] diameter: 21 mm
* [[Field of view]]: 4° 30′
* [[Exit pupil]]: 6 mm
* [[Eye relief]]: 72 mm
* Limiting [[optical resolution]]: 17 [[arc second|SOA]]
* Weight: 0.27 kg
* Length: 169 mm
==Gallery==
<gallery>
File:PU sight Reticle.png|The PU 'German style' [[reticle]]
File:Ćwiczenia Armii Andersa w ZSRR 1942.jpg|Russian [[SVT-40]] semi-automatic battle rifle with PU 3.5×21 sight
File:1941 Tula SVT-40 Sniper Configuration noBG.png|A 1941 Tula SVT-40 with PU 3.5×21 sight in original sniper configuration
File:Sniper Rifle Mosin 1891 30-fr.png|Russian [[Mosin–Nagant#Russia/USSR|Model 1891/30 sniper rifle]] with PU 3.5×21 sight
▲
</gallery>
== See also ==
* [[PE scope]]
==External links==
{{Commons category|PU rifle scope}}
{{reflist}}
* [http://www.snipercountry.com/Articles/HistoricSniperScopes_PUScope.asp Brief overview]
{{Soviet and Russian military sights|state=expanded}}
{{firearm-stub}}▼
[[Category:Firearm sights of the Soviet Union]]
▲{{firearm-stub}}
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