Registrace nového uživatele     Návod     Kluby     Archív  Lopuchu     Lopuch.cz  

Což takhle
dát si Lopuch?

Lopuch.cz

Jméno:
Heslo:
Podpora LCD:
 
Klub Zbrane [ŽP: 24 týdnů] (kategorie Věda a Technika) moderují Al, El_Diablo, ocs, themajkl.
Archiv
Domovská stránka aktualizována 22.7.2025 23:42
Omlouvám se ale bohužel jsem musel zakázat psaní anonymům, protože nám tu nějaký sabotér vložil "hack" kvůli kterému nešlo přispívat nikomu. Nevím jestli to pomůže, ale snad nad tímto darebákem budeme mít větší kontrolu.
Srdečně zveme do tohoto klubu všechny, kteří se zajímají o zbraně, střelbu a všechno, co s tím souvisí a chtějí si o tom všem v přátelské atmosféře povídat, poradit druhým, nebo se naopak chtěji zeptat na radu.

Kdo chce vystupovat anonymně (tj. bez registrace na Lopuchu), musí si vymyslet nějaké jméno nebo přezdívku a psát ho do každého svého anonymního příspěvku.

Každého přece musíme v diskusi nějak oslovovat, aby bylo jasné, kdo na koho reaguje. Kdybychom měli odpovídat několika bezejmenným anonymům najednou, byla by diskuse značně nepřehledná. Takže, kdo neuvede jméno či přezdívku, ten jako by nebyl.

Jak psát klikatelné odkazy:
 <a href="http://adresa stránky(URL)">Název stránky</a>


Úložiště obrázků:
  • 1iq.cz Bezplatné úložiště obrázků a rychlé sdílení printscreenu.
  • Bezplatné úložiště obrázků imgway.cz
  • Bezplatné úložiště obrázků imgbox.com



  •  Výslovně zakázány jsou pouze urážky (je jedno koho), nesmyslné hádky a extrémně vulgární příspěvky.

    Video Alova prototypového samopalu
    Early Automatic Pistol Cartridges - What, When & Why?
    Cowboys



    Cvičně zprovozněna homepage ... :
      Nastavení klubu     Nastavení práv     Homepage     Anketa     Přítomní     Oblíbené     Lopuch     Kategorie  
    autor: 
    text: 
    vyplnit a 
    Help

    Nemáte právo psát do tohoto klubu.

    [ 17553 ] <Novější  <<<Nejnovější  Nejstarší>>>  Starší>  
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 29.8.2025 21:39 - Klub Zbrane (21:39) 35077
    Webley .22 Target Model Mk IV Revolver


    Webley made a variety of .22 rimfire revolvers and revolver conversions for most of its history. Rimfire conversions were used by the military for reduced-cost training, and they were popular on the civilian market for sport and competition shooting. When Webley introduced its MkIV small-frame revolver, it was available in .38 and .32 caliber, and in 1932 they introduced a factory .22 rimfire model. It was intended specifically for target shooting, with a 6” barrel (the longest standard Webley barrel length) and adjustable sights. Initially it used a stepped cylinder, but this changed to a full-profile design by 1940. The firing pin was redesigned slightly to hit the rim of a cartridge instead of central primer, but the gun is otherwise mechanically the same as a normal .38 MkIV. Production ran until 1967, but relatively small numbers were made and they are fairly rare to find today.
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 27.8.2025 18:47 - Klub Zbrane (21:39) 35076
    Potato Digger at War: Marlin Model 1917 Machine Gun
    John Browning’s first machine gun design was a gas operated system that used a swinging lever instead of a linear piston. He presented the first prototype to Colt in 1890, and it went into production in 1895. The US Navy bought a couple hundred, but the Army opted not to adopt it (much to Colt’s surprise). It was offered for sale internationally, but didn’t become very popular until World War One broke out.

    By this time, Colt had improved it a bit with a finned detachable barrel, and they started getting orders for thousands of the guns from Belgium, Russia, Canada, Britain, and elsewhere. Unable to keep up with demand, they licensed the design to the Marlin company. Marlin made a few additional improvements (pistol grip attachment, sights, and access door for clearing malfunctions) and made several thousand for allied nations as well as 2,500 fort he US Army to use as training guns in 1917. They further improved the design by changing it to a linear gas piston, and sold some 38,000 to the US military for aircraft use.

    3D animation of the Colt 1895 mechanism from vbbsmyt: • Browning 1895 'Potato digger'

    Marlin 7MG Aircraft Gun: • Marlin 7MG aka Model 1917 Aircraft Machine...

    The best firearms reference books: https://www.headstamppublishing.com
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 25.8.2025 19:01 - Klub Zbrane (21:39) 35075
    Soviet World War Two 50mm Light Mortars (RM-39 & RM-40)


    The Soviet Union decided to adopt a 50mm light mortar in 1937 as a company-level armament. The first such weapon they used was the RM-38, introduced in 1938. It was a complex design, with a gas venting system to adjust range (200m - 800m), a bipod specifically set to either 45 or 75 degrees, and a recoil buffering system. This was clearly too complex, and it was replaced by the RM-39 the next year. This remained a well-made mortar, but now had a freely adjustable bipod. However it quickly proved too complex and expensive and it was in turn replaced by the RM-40.

    The RM-40 is a much more efficient (aka, cheap) design. It used simple stamped bipod legs and a heavy stamped baseplate. It still uses adjustable gas venting to set range and retains a simplified recoil buffer, but it is a much more quickly produced weapon. A 1941 model of completely different design did replace it though, and by 1943 the Soviet Union moved to 82mm mortars for better effectiveness.

    The Soviet mortars were generally well liked by German troops who captured them, as they were significantly longer ranged than the German 50mm mortar. They were also captured in large numbers by the Finns, who used them as well but found them underpowered. In 1960 some 1,268 Soviet 50mm mortars of all models were sold by the Finnish Defense Forces to Interarms to be imported into the US. Some were registered and sold as Destructive Devices and some were deactivated and sold as dummies.
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 24.8.2025 23:12 - Klub Zbrane (21:39) 35074
    Pauly/Roux Pistols: The First Self-Contained Cartridges

    Samuel Pauly is the largely unrecognized father of the modern self-contained cartridge. In 1808 he patented a cartridge with a metal base that held a priming compound and attached to a paper or metal cartridge body holding powder and projectile. He followed this with an 1812 patent for a gun to fire the cartridges. What makes Pauly’s original system particularly interesting is that he did not use mechanical percussion (ie, hammer or striker) to ignite the primer compound, but rather a “fire pump”. A spring loaded plunger compressed air on top of the primer, heating it enough to detonate the compound in the same way that a diesel engine works. This was not a commercially successful system, though, and Pauly left Paris for London in 1814.

    Pauly’s shop was taken over by Henri Roux, who continued making guns under the Pauly name while also improving the cartridges. These two pistols were made around 1820 and use a Roux cartridge with a mechanical striker hitting the primer compound in a Pauly-style cartridge case.

    For more information, I recommend Georg Priestel’s free book “Jean Samuel Pauly, Henri Roux, and Successors - Their Inventions From 1812 to 1882” available here:
    https://aaronnewcomer.com/document/je...
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 24.8.2025 23:11 - Klub Zbrane (21:39) 35073
    A Modern Integrally Suppressed Pistol for Everyone: The SilencerCo Maxim 9

    SilencerCo announced the Maxim-9 pistol in late 2015. Having gone through some huge growth of the past few years, the company wanted to expand its capabilities and thought that the time was right for a modern integrally suppressed pistol. It was a unique new design of modern semiautomatic pistol build from the ground up to be integrally suppressed. The action is a proprietary delayed blowback system with all of the moving parts in the back half of the slide. This leaves the front of the gun dedicated entirely to suppressor volume.

    The guns were released at SHOT Show 2017, and were relatively slow sellers, because of the high price and the required NFA registration. The expected passage of the Hearing Protection Act around that time would have been a huge boon for sales, but did not ultimately happen. Still, production continued until tapering off in early 2021 as SilencerCo shifted priority to regular suppressor manufacture in the face of a boom in demand.

    The project may not have been a massive success for SilencerCo, but it was still a worthy endeavor that they do not regret. It helped mature the company, forcing them to embrace new proficiency in things like GD&T and advanced quality control machinery. And the pistol is, in fact, very cool.
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 24.8.2025 23:09 - Klub Zbrane (21:39) 35072
    Huge Dumonthier Bowie Knife Revolver


    Joseph-Célestin Dumonthier was one of the most notable and prolific gunsmiths in France specializing in combination guns. He made a variety of knife-guns and gun-knives large and small, as well as things like cane guns and occasionally even just regular guns. He initially worked in Houdan (about 30 miles west of Paris) in the 1840s before moving into Paris proper from the 1850s until the 1890s.

    This particular example of his work is a 6-shot Lefaucheux revolver with a fixed trigger and trigger guard. It has a roughly 8 3/8” Bowie style blade with the barrel built in. Quite the impressive piece!

    Early Dumonthier-type double barreled knife-gun: • Norwegian 1846 Postførerverge Knife-Pistol?
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 24.8.2025 22:41 - Klub Zbrane (21:39) 35071
    The Official American Boy Scout Rifle: Remington 4-S

    The scouting concept exploded into the American culture after 1907, with a multitude of local, regional, and national organizations setting up in the years before World War One. Among these was the American Boy Scouts, founded by William Randolph Hearst. In 1913 they adopted the Remington 4-S as their official rifle, a .22 Short caliber rolling block. It was initially sold directly and exclusively to Scouts for $5, although it was quickly added to the general Remington catalog.

    This rifle was intended to be used for both target shooting and also military style drill. To that end, inhan military style furniture, a stacking swivel, and a bayonet lug with miniature bayonet. About 1500 of these were made in 1913, which was the only year of production. In 1914, probably having failed to make the hoped-for sales numbers, Remington renamed the gun the “Military Model” to expand its sale beyond just the American Boy Scouts.

    Oh, and note that this was not the Boy Scouts of America! The ABS would have a series of legal fights with the BSA over naming rights, which he BSA finally won in the early 1920s. The ABS was never a very large organization, and it faded away entirely in the 1920s. The BSA opted not to have an official rifle, as it was shying away from firearms at the time after a couple well-publicized shooting accidents.
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 13.8.2025 19:34 - Klub Zbrane (21:39) 35070
    Interdynamic MP-9 SMG: Origin of the TEC-9


    The story of the Tec-9 begins with a Swedish company called Interdynamic AB and their designer Göran Lars Magnus Kjellgren designing a cheap and simple submachine gun for military use. It found no interested clients, and so the company decided to market it in the United States as a semiautomatic pistol. Kjellgren moved to the US in 1979, anglicized his name to George Kellgren, and founded Interdynamic USA with a partner, Carlos Garcia.

    The pair produced a few dozen MP-9 submachine guns in 1982 (they were all transferrable, as this was before 1986) as well as a semiauto open bolt version called the KG-9 (Kellgren-Garcia). About 2500 of the KG-9s were made before later in 1982 the ATF determined that it was a machine gun, and they had to redesign it as a closed bolt semiauto, which they named the KG-99. At about this point Kellgren decided to move on to other plans, and he sold his interest in the company to Garcia, who formed a new company called Intratec. Kellgren used the proceeds to start Grendel a few years later.
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 11.8.2025 21:00 - Klub Zbrane (21:39) 35069
    Baker Pattern 1800 Rifle for Napoleonic Wars Sharpshooters

    The British military decided to organize their disparate small units of riflemen into a single standardized group in 1800. The 95th Regiment - the British Rifle Corps - was founded and it was equipped with a pattern of rifle designed by one Ezekiel Baker. This was a .625 caliber rifle with a 30” long barrel and a remarkably slow 1:120” rifling twist. That rifling was deliberately chosen to balance rifle accuracy with ease of loading and it worked quite well as a compromise solution. The Baker was considered effective on individual targets to 200 yards (300 with a particular skilled marksman) and area targets out to 500 yards.

    The Baker was used throughout the Napoleonic Wars and only replaced in 1838 by the Brunswick rifle. This example is one of the original 1800 pattern, modified in 1815 to replace its distinctive bayonet bar (used to fit the large short sword bayonet made for the Baker) with a typical socket bayonet lug.

    BritishMuzzleLoaders playlist on the Baker: • The 1800 Baker Rifle: Two (Very) Frequent...
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 9.8.2025 15:30 - Klub Zbrane (21:39) 35068
    Four-Barrel Mule Ear Custom Rifle from the 1850s

    This is a custom rifle made by gunsmith P.E. Hall of Ashtabula, Ohio most likely between 1948 and 1854. It has a cluster of four .36 caliber rifles barrels (24 inches long) in an octagonal frame. The action is a quadruple set of mule ear hammers, two on each side, with a double set trigger. Pretty neat!
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 8.8.2025 21:17 - Klub Zbrane (21:39) 35067
    Colt SMG: First of the 9mm ARs

    With the expansion of SWAT teams throughout law enforcement in the 1980s, Colt realized that it was leaving a lot of sales on the table by not having a submachine gun it could offer alongside M16/CAR-15 rifles and carbines. They addressed this in the early 1980s by adapting a CAR-15 to 9x19mm. It used an adapter in the magazine well to fit modified Uzi pattern magazines (they were given hold-open tabs on the followers), and retained the same handling and controls as the full size AR. The SMG was made as a closed bolt, hammer fired, simple blowback action. By adding weight to the bolt carrier and buffer, the rate of fire was kept down to around 800 rpm.

    The Colt SMG never really captured wide appeal. It was reasonably successful for Colt in large part because of their ability to market it alongside rifles, but it was dogged by reliability problems. A bunch of different models were made with different fire control options, including a couple civilian semiautomatic models and the distinctive DoE “briefcase gun” and the integrally suppressed DEA model, although neither of those saw very substantial sales. Still, it remains available to this day.
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 6.8.2025 18:42 - Klub Zbrane (21:39) 35066
    Return of the AK-50

    The AK-50 is back, and we’re making it better than ever.
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 6.8.2025 18:19 - Klub Zbrane (21:39) 35065
    12 inch Siege Howitzer, 1916

    The British 12-inch Siege Howitzer was built by Vickers, as a scaled up version of their 9.2-inch Howitzer. It entered service at the Western Front in August 1916. This massive gun was broken down into 6 loads with a combined weight of 44 tons and hauled to the front lines for assembly. At the selected site, which would usually be in amongst trees, a template was pegged out on the ground and the foundation excavated by two 19-man detachments. Constructing the gun needed to be unobserved by the enemy aircraft as far as possible, so much work was done at night, and the works covered by tarpaulins. Caterpillar tracks had to be erased. The individual loads were winched across the excavation, and lowered using ratchet spanners operating on the nuts of lowering-screw threads. The first 4 loads (pivot, rear roller path, side girders and the gun carriage) were relatively straightforward to assemble in this way. The 6 ton Cradle and 9 ton Barrel were delivered on special waggons containing a winch that raised the waggon up to the level of the gun carriage, and a chain drive that slid the cradle, and subsequently the barrel, into place.

    Howitzers specialised in indirect fire - where the target was not visible from the gun position. The animation shows a (simplified) process for setting the range and bearing on the gun to engage the target. In practice, there are many more factors that need to be taken into account. For more information please look at Nigel Evans’ web site (www.britishartillery.co.uk)
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 6.8.2025 17:46 - Klub Zbrane (21:39) 35064
    East Germany's Nice .22 AK Trainer: KK-Mpi-69

    The KK-Mpi-69 (Klein Kaliber Maschinenpistole 1969) was a .22 rimfire training model of the standard East German stamped AKM. It used a simple blowback replacement bolt assembly and proprietary front trunnion along with a standard AKM receiver and fire control group. There is no gas block, since a gas piston is not used, and the sights are calibrated for short range rimfire shooting only. The magazines are standard AKM magazine bodies holding 15-round .22 rimfire magazines. Approximately 50,000 of these were made between 1970 and 1975.

    Many thanks to the IRCGN (Institut de Recherche Criminelle de la Gendarmerie Nationale) for allowing me access to film this unusual AK variant for you!
    el_diablo El_Diablo Veškerá nepodstatná elektronická zařízen - mimo provoz, včetně kontroly pravopisu. 4.8.2025 19:09 - Klub Zbrane (21:39) 35063
    Nielsen Device: How it Works and Why it's Necessary

    The Nielsen Device is a type of suppressor mount that allows a suppressor to move forward upon firing and thus allow a recoil-operated firearms to cycle reliably despite the added weight of a suppressor. Popularized by Doug Olsen in the 1980s, they allow pistols to be readily suppressed without needing to tinker with spring strength, slide weight, and suppressor weight. They are not necessary or useful on fixed-barrel pistols, however.

    [ 17553 ] <Novější  <<<Nejnovější  Nejstarší>>>  Starší>  

    (c) 2001-2011 Lopuch.cz   
    Kontakt