Question: The PU scope (ПУ, прицел укороченный, 'Scope short-cut' in comparison to PE scope) is a sniper scope of Soviet manufacture, widely used on the Mosin–Nagant and which Soviet semi-automatic battle rifle?

full_context: Document 1: TT pistol: The TT-30 (Russian: "7,62-мм самозарядный пистолет Токарева образца 1930 года" , 7,62 mm Samozaryadnyj Pistolet Tokareva obraztsa 1930 goda, "7.62 mm Tokarev self-loading pistol model 1930", TT stands for Tula-Tokarev) is a Russian semi-automatic pistol. It was developed in the early 1930s by Fedor Tokarev as a service pistol for the Soviet military to replace the Nagant M1895 revolver that had been in use since Tsarist times, though it ended up being used in conjunction with rather than replacing the M1895. It served until 1952, when it was replaced by the Makarov pistol.
Document 2: PU scope: The PU scope (ПУ, прицел укороченный, 'Scope short-cut' in comparison to PE scope) is a sniper scope of Soviet manufacture, widely used on the Mosin–Nagant and SVT-40. The scope was fixed at 3.5 power magnification. The reticle could be adjusted vertically for range, from 0 to 1300 meters. Horizontal adjustments for windage were also provided.
Document 3: Gewehr 41: The Gewehr 41 (German for: rifle 41), commonly known as the G41(W) or G41(M), is a semi-automatic rifle manufactured and used by Nazi Germany during World War II.
Document 4: PPSh-41: The PPSh-41 ("pistolet-pulemyot Shpagina"; Russian: Пистолет-пулемёт Шпагина ; "Shpagin machine pistol"); is a Soviet submachine gun designed by Georgy Shpagin as a cheap, reliable, and simplified alternative to the PPD-40. Common nicknames are ""pe-pe-sha"" (Russian: ППШ ) from its three-letter prefix and ""papasha"" (Russian: папаша ), meaning "daddy".
Document 5: Snipers of the Soviet Union: Snipers of the Soviet Union played an important role mainly on the Eastern Front of World War II, apart from other preceding and subsequent conflicts. In World War II, Soviet snipers used the 7.62×54mmR rifle cartridge with light, heavy, armour-piercing (B-30), armour-piercing-incendiary (B-32), zeroing-and-incendiary (P3), and tracer bullets. Most Soviet World War II snipers carried a combat load of 120 rifle cartridges in the field. Unlike the militaries of other nations, these snipers could be men or women. In 1943, there were over 2,000 women functioning in this role.
Document 6: MS-74: MS-74 (№74 Factory's Modernised" Sniper rifle ") was a limited edition Soviet sniper rifle, made by Yevgeny Dragunov in 1949 at Izhevsk Machinebuilding Plant. The weapon was based on Mosin's rifle with 7.62×54mmR cartridge. The main aim was to increase accuracy and improve the comfort. It was tested and recommended for use.
Document 7: Gewehr 43: The Gewehr 43 or Karabiner 43 (abbreviated G43, K43, Gew 43, Kar 43) is a 7.92×57mm Mauser caliber semi-automatic rifle developed by Germany during World War II. The design was based on that of the earlier G41(W), but incorporating an improved short-stroke piston gas system similar to that of the Soviet Tokarev SVT-40, and it incorporated innovative mass-production techniques.
Document 8: Karabiner 98k: The Karabiner 98 kurz (] ; "carbine 98 short", often abbreviated Kar98k or K98k) is a bolt-action rifle chambered for the 7.92×57mm Mauser cartridge that was adopted on 21 June 1935 as the standard service rifle by the German "Wehrmacht". It was one of the final developments in the long line of Mauser military rifles. Although supplemented by semi- and fully automatic rifles during World War II, it remained the primary German service rifle until the end of the war in 1945. Millions were captured by the Soviets at the conclusion of World War II and were widely distributed as military aid. The Karabiner 98k therefore continues to appear in conflicts across the world as they are taken out of storage during times of strife.
Document 9: Type 97 sniper rifle: The Type 97 Sniper Rifle (九七式狙撃銃 , Kyū-nana-shiki sogekijū ) is a Japanese bolt-action rifle, based on the Type 38 Rifle. Following the standard practice of the time, it was adapted from an existing infantry rifle. The only difference between this rifle and the original Type 38 is that it had a lightened stock, a 2.5 power telescopic sight and a mid-band setup for a monopod, although later models had this deleted. The rifle entered service in 1937. When fired, the mild 6.5x50mm Arisaka cartridge gave off little flash or smoke and made counter-sniper activity difficult. The lack of flash and smoke comes from the length of the barrel; a 797 mm long barrel allows cartridge propellant to fully burn and attain the optimum combination of accuracy and bullet velocity. The scope was offset to the left, to allow stripper clip loading. Like other Mauser pattern rifles, it has a five round box magazine. The rifle can be loaded with either a 5 round stripper clip, or single rounds.
Document 10: StG 44: The StG 44 (abbreviation of Sturmgewehr 44, "assault rifle 44") is a German selective-fire rifle developed during World War II. It is also known under the designations MP 43 and MP 44 ("Maschinenpistole 43", "Maschinenpistole 44" respectively).
Document 11: AK-47: The AK-47, or AK as it is officially known (Russian: Автомат Калашникова , "Avtomat Kalashnikova ", 'Kalashnikov's Automatic Rifle' ), also known as the Kalashnikov, is a selective-fire (semi-automatic and fully automatic), gas-operated 7.62×39mm assault rifle, developed in the Soviet Union by Mikhail Kalashnikov. It is the originating firearm of the Kalashnikov rifle (or "AK") family.
Document 12: SKS: The SKS is a Soviet semi-automatic carbine chambered for the 7.62×39mm round, designed in 1943 by Sergei Gavrilovich Simonov. Its complete designation, SKS-45, is an initialism for Samozaryadny Karabin sistemy Simonova, 1945 (Russian: Самозарядный карабин системы Симонова , 1945; Self-loading Carbine of (the) Simonov system, 1945). The SKS-45 was manufactured at Tula Arsenal from 1949-1958 and at Izhevsk Arsenal in just 1953 and 1954, resulting in a total Soviet production of about 2.7 million carbines. In the early 1950s, the Soviets took the SKS carbine out of front-line service and replaced it with the AK-47; however, the SKS remained in second-line service for decades. It is still used as a ceremonial firearm today. The SKS was widely exported, and was also licensed for production by then Eastern Bloc nations, Romania and East Germany, as well as China, where it was designated the "Type 56 Carbine". The East German version was known as the Karabiner S, the Albanian as the Model 561 and North Korean as the "Type 63". The SKS is popular on the civilian surplus market as a hunting and marksmanship semi-automatic rifle in many countries, including the United States, Canada, and New Zealand. Its age and numbers make it relatively inexpensive to purchase, and steel cased 7.62x39mm ammunition is one of the least expensive center fire cartridges currently on the market. The SKS was the second firearm to be chambered for the 7.62×39mm M43 round, with the first being the RPD.
Document 13: Steyr Scout: The Steyr Scout is a modern scoped bolt-action rifle manufactured by Steyr Mannlicher and chambered primarily for 7.62 NATO (.308 Winchester), although other chamberings are offered commercially. It is intended to fill the role of a versatile, lightweight all-around rifle as specified in Jeff Cooper's scout rifle concept. Apart from the barrel and action, it is made primarily of polymers and is designed to be accurate to at least 300–400 meters. The Steyr Scout is also available in 5.56 NATO (.223 Remington), .243 Winchester, .376 Steyr and 7mm-08 Remington.
Document 14: Lobaev Sniper Rifle: The Lobaev sniper rifle is a rifle line of custom-built bolt-action sniper rifles manufactured at the now defunct small, private company named "Tsar-Cannon Ltd" (ООО Царь-Пушка), which produced benchrest equipment and long-range, sniper and mountain hunting rifles in Tarusa, Russia. The Lobaev rifles are based on a single-shot bolt-action designed for benchrest shooting by Vladislav Lobaev. The chambering, barrel, stock, ammunition feeding method and other rifle characteristics are determined by the clients' preferences. With an accuracy of 0.3-0.2 MOA at ranges of more than 2 km, the Lobaev SVL is claimed as the most accurate sniper rifle in the world.
Document 15: 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) is a Soviet semi-automatic battle rifle. The SVT-40 saw widespread service during and after World War II. Intended to be the new service rifle of the Soviet Red Army, production was disrupted by the German invasion in 1941 resulting in a change back to the older Mosin–Nagant bolt-action rifle for the duration of World War II. After the war new rifles were adopted by the Soviet Union, such as the SKS and the AK-47.
ground_truth: SVT-40