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7.7×58mm Arisaka
The 7.7×58mm ''Arisaka'' cartridge was the standard military cartridge for the Imperial Japanese Army and the Imperial Japanese Army Air Service during World War II. The 7.7×58mm cartridge was designed as the successor of the 6.5×50mmSR cartridge for rifles and machine guns but was never able to fully replace it by the end of the war. History Development Towards the end of WWI, the Japanese military would experience the 7.7mm projectiles in the form of the .303 British cartridge for machine guns mounted on early aircraft like the Ro-Go Ko-gata seaplane. While the Imperial Japanese Navy would continue to equip machine guns in rimmed .303 under the 7.7mm designation, the Imperial Japanese Army sought to develop their own 7.7mm cartridge in various semi-rimmed and rimless cases for the Infantry and the Army Air Service. A rimless 7.7×58mm cartridge was first tested for a prototype 7.7 mm infantry rifle in 1919. While the experiments would continue throughout the 1920 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea in the south. The Japanese archipelago consists of four major islands—Hokkaido, Honshu, Shikoku, and Kyushu—and List of islands of Japan, thousands of smaller islands, covering . Japan has a population of over 123 million as of 2025, making it the List of countries and dependencies by population, eleventh-most populous country. The capital of Japan and List of cities in Japan, its largest city is Tokyo; the Greater Tokyo Area is the List of largest cities, largest metropolitan area in the world, with more than 37 million inhabitants as of 2024. Japan is divided into 47 Prefectures of Japan, administrative prefectures and List of regions of Japan, eight traditional regions. About three-quarters of Geography of Japan, the countr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, Potsdam Declaration, when it was dissolved following surrender of Japan, Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952 and 1954 after the dissolution of the IJN. The IJN was the third largest navy in the world by 1920, behind the Royal Navy and the United States Navy (USN). It was supported by the Imperial Japanese Navy Air Service for reconnaissance and airstrike operations from the fleet. It was the primary opponent of the Allies of World War II, Western Allies in the Pacific War. The IJN additionally fielded Imperial Japanese Navy land forces, limited land-based forces, including Special Naval Landing Forces, professional marines, Japanese marine paratroopers of World War II, marine paratrooper units, anti-aircraft defense units ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hornady
Hornady Manufacturing Company is an American manufacturer of ammunition cartridges, components and handloading equipments, based in Grand Island, Nebraska. History Joyce W. Hornady began manufacturing bullets in the spring of 1949 with a .30 caliber spire point selling for $4.50 per hundred. Within a year Hornady was producing thirteen different bullets in five different calibers. The Korean War caused material shortages limiting early production. An early innovation was thinner copper jackets for varmint hunting bullets to cause rapid expansion and minimize size of ricochet particles. A new factory was required in 1958 to meet surging demand as returning soldiers used their firearm skills for hunting. A test range in an underground tunnel was built in 1960 to aid development of secant ogive bullets in 1961. The company is currently run by Joyce Hornady's son, Steve Hornady, who took over after his father's death in a plane crash on January 15, 1981. The Piper Aztec, wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norma Precision
Norma Precision AB, commonly referred to simply as Norma, is a Swedish manufacturer of firearm ammunition based in Åmotfors, Värmland. History Norma was started in 1902 by three Norwegian brothers from Nordre Land, Lars Enger (1850-1917), Johan Enger (1852-1925) and Ivar Enger (1863-1942), whose company L.A.Enger & Co acquired an ammunition factory in Raufoss and later moved to Kristiania (modern day Oslo) as Norma Projektilfabrik A/S (Norma projectile factory stock company) a few years earlier in 1895. The name "Norma" has often been confused as a shorthand for Normandy or "Norge" (Norway in Nordic), however the name was actually chosen because Lars, the eldest of the three brothers, was very fond of the Italian opera ''Norma'' by Vincenzo Bellini. The Swedish shooting movement needed a supplier and Norma Projektilfabrik A/S was asked to establish a local presence in Sweden. At this time, Sweden and Norway were in a union. The youngest of three Enger brothers, Iva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentaerythritol Tetranitrate
Pentaerythritol tetranitrate (PETN), also known as PENT, pentyl, PENTA (''ПЕНТА'', primarily in Russian), TEN (tetraeritrit nitrate), corpent, or penthrite (or, rarely and primarily in German, as ''nitropenta''), is an explosive material. It is the nitrate ester of pentaerythritol, and is structurally very similar to nitroglycerin. Penta-, Penta refers to the five carbon atoms of the neopentane skeleton. PETN is a very powerful explosive material with a relative effectiveness factor of 1.66. When mixed with a plasticizer, PETN forms a plastic explosive. Along with RDX it is the main ingredient of Semtex. PETN is also used as a Vasodilation, vasodilator drug to treat certain heart conditions, such as for management of angina. History Pentaerythritol tetranitrate was first prepared and patented in 1894 by the explosives manufacturer of Cologne, Cologne, Germany. The production of PETN started in 1912, when the improved method of production was patented by the German governm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Phosphorus
White phosphorus, yellow phosphorus, or simply tetraphosphorus (P4) is an allotrope of phosphorus. It is a translucent waxy solid that quickly yellows in light (due to its photochemical conversion into red phosphorus), and impure white phosphorus is for this reason called yellow phosphorus. White phosphorus is the first allotrope of phosphorus, and in fact the first elementary substance to be discovered that was not known since ancient times. It glows greenish in the dark (when exposed to oxygen) and is highly flammable and pyrophoric (self-igniting) upon contact with air. It is toxic, causing severe liver damage on ingestion and phossy jaw from chronic ingestion or inhalation. The odour of combustion of this form has a characteristic garlic odor, and samples are commonly coated with white " diphosphorus pentoxide", which consists of tetrahedra with oxygen inserted between the phosphorus atoms and at their vertices. White phosphorus is only slightly soluble in water and can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 99 Light Machine Gun
The was a light machine gun used by the Imperial Japanese Army in World War II. It was similar in design to the earlier Type 96 light machine gun, but designed to fire the new and more powerful 7.7×58mm Arisaka cartridge, which improved energy by over 50%. Other improvements included the omission of the oiling mechanism which resulted in a better all-round weapon. The Type 99 never fully replaced the previous models of Japanese light machine guns, and served alongside the Type 11 and Type 96 until 1945. History and development Prior to the Type 99's development, the Japanese Army was using the Type 96 light machine gun, a successor to the previous Type 11 light machine gun. The Type 96 had been introduced into combat service in 1936, and quickly proved to be a versatile weapon to provide covering fire for advancing infantry. Both the Type 11 and Type 96 used the same 6.5x50mmSR Arisaka cartridges as the Type 38 infantry rifle. Using similar ammunition in both guns simpl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zbrojovka Brno
Zbrojovka Brno, s.r.o is a maker of small arms in Brno, Brno, Czech Republic, wholly owned by Colt CZ Group, Colt-CZ Group. In the past it also made light artillery, cars, motorcycles, tractors and various tools, such as typewriters and early computers. In 1946, Zbrojovka started manufacturing tractors under the brand Zetor (a combination of the letter "Zet" and the word "tractor"). Zetor continues to make tractors as a separate company. History The company was founded in 1918 as a state-owned factory known as the State Armament and Engineering Works. The factory assembled German Gewehr 98 and Austrian Mannlicher M1895 rifles, but later began producing their own. In 1924–1925 a new factory was built, where cars, engines and other machines were produced in addition to rifles and machine guns. In the 1930s, the factory also produced Remington licensed typewriters and Skoda tractors. During the German occupation of Czechoslovakia, Zbrojovka Brno was renamed to Waffenwerke Brunn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 97 Heavy Tank Machine Gun
The was the standard machine gun used in tanks and armored vehicles of the Imperial Japanese Army during World War II, and as a heavy machine gun by infantry forces. This weapon was not related to the Type 97 aircraft machine gun used in several Japanese Navy aircraft including the Mitsubishi A6M Zero, or the Type 97 automatic cannon used as an anti-tank rifle. Development Initially, the Type 11 light machine gun was modified by the Army Technical Bureau for use in tanks and other armored vehicles, and was produced for this application under the designation "Type 91 mobile machine gun". The basic design issues with the Type 11 remained, including its tendency to jam because of the slightest amount of grit or dirt, and the low lethality and lack of stopping power of its 6.5x50mm Arisaka cartridges. During the early stages of the Second Sino-Japanese War, Japanese forces captured a number of Czechoslovak ZB vz. 26 light machine guns from China’s National Revolutionary Army; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZB-30
The ZB-30 and ZB-30J were Czechoslovakian light machine guns that saw extensive use during World War II. History The Zb 30 and Zb 30J were the later versions of the famous Czechoslovak machine gun, the ZB-26. However, the ZB-30 had some design differences, making it similar to the later ZGB-33, which was an early prototype of the Bren gun. Like the ZB-26, the ''Wehrmacht'' adopted the ZB-30 after the occupation of Czechoslovakia, renaming it the MG 30(t); it was used in the same role as the MG34, as a light machine gun. In the opening phases of World War II, the ZB-30 in 7.92 mm Mauser caliber was used in large numbers by elements of the German ''Waffen-SS'', who did not initially have full access to standard ''Wehrmacht'' supply channels. Comparison of original ZB vz.26 and modifications: Note - The ZB 30J was a late design iteration of the ZB 30 for sale to Yugoslavia (originally spelled with a J) that featured an adjustable gas system so that commonly available light a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
