Single-shot

Summary

In firearm designs, the term single-shot refers to guns that can hold only a single round of ammunition inside and thus must be reloaded manually after every shot. Compared to multi-shot repeating firearms ("repeaters"), single-shot designs have no moving parts other than the trigger, hammer/firing pin or frizzen, and therefore do not need a sizable receiver behind the barrel to accommodate a moving action, making them far less complex and more robust than revolvers or magazine/belt-fed firearms, but also with much slower rates of fire. The history of firearms began with muzzleloading single-shot firearms such as the hand cannon and arquebus, then multi-barreled designs such as the derringer appeared, and eventually many centuries passed before breechloading repeating firearms became commonplace. Although largely disappeared from military usage due to insufficient firepower, single-shot firearms are still produced by many manufacturers in both muzzleloading and cartridge-firing varieties, from zip guns and ultra-concealable pocket pistols to the highest-quality hunting and match rifles. History of firearms The vast majority of firearms before the introduction of metallic cartridges from the 1860s onwards, were single-shot muzzleloaders. However, multi-barrel, breechloading, revolving, and other multi-shot firearms had been experimented with for centuries. Notable pre-cartridge era single-shot firearms included matchlock, wheellock, snaplock, doglock, miquelet lock, flintlock, and percussion cap firearms. Muzzleloaders included the Brown Bess, Charleville and Springfield Model 1861 muskets, the Kentucky and Mississippi rifles, and the duelling pistol. There were also early breech-loading single-shot rifles such as the Hall, Ferguson, and Sharps. Almost all of the early cartridge-fed rifles were single-shot designs, taking advantage of the strength and simplicity of single-shot actions. A good example is the "trapdoor" or Allin action used in early cartridge conversions of 1863 Springfield muzzleloading rifles.

Official source

https://en.wikipedia.org/wiki/Single-shot

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Related publications (1)

Study and Experimental Characterization of a Novel Photo Injector for the CLIC Drive Beam

Öznur Mete

In this thesis, the transverse and longitudinal beam properties of the PHIN photoinjector are characterized. The objective of the research is to demonstrate the reliable and stable production of a 1.3 µs long bunch train, with 2.33 nC charge per bunch and 4.5 µC of total charge, by the PHIN photoinjector. The results of this thesis are the important steps towards the feasibility demonstration of a photoinjector as the Compact Linear Collider's drive beam source. The PHIN photoinjector has been conceptualized by a collaboration between "Laboratoire de l'Accélérateur Linéaire (LAL)", "Rutherford Appleton Laboratory (RAL)" and "Organisation Européenne pour la Recherche Nucléaire (CERN)". Within this collaboration, LAL and RAL have committed to the design and the construction of the RF gun and laser, respectively. The photocathode production as well as the overall coordination and commissioning were under the responsibility of CERN. The project is in the framework of the second Joint Research Activity PHIN of the European CARE program. The photoinjector has been installed, in 2008, on a dedicated test-stand at CERN. During the commissioning of the PHIN photoinjector, the beam properties have been studied by rigorous systematic measurements and simulations. The maximum charge per bunch yield of the Cs2Te cathode has been found to be 4.4 nC, in agreement with the theoretical limit of 4.7 nC. The transverse normalized emittance, beam energy and energy spread have been measured both in a single shot and the time-resolved manner. The single shot measurements revealed useful information about the shot-to-shot stability of the beam properties, whereas the time-resolved measurements have reflected the stability along the bunch train. The multi-slit emittance measurement set-up, OTR profile monitors with gated CCD cameras and a segmented beam dump have been designed, implemented and utilized for the main measurements. The experimental characterization and the numerical studies clearly indicate the feasibility of a photoinjector within the specifications defined by the existing CLIC test facility. Further simulation and design studies have been conducted based on several modifications of the current PHIN RF gun design. In this successive model an RF gun with the specifications of the CLIC drive beam has been investigated and proposed as the preliminary design for the future CLIC drive beam injector studies.

EPFL2011

Related concepts (28)

Bolt action

Bolt-action is a type of manual firearm action that is operated by directly manipulating the bolt via a bolt handle, which is most commonly placed on the right-hand side of the firearm (as most users are right-handed). Most bolt-action firearms use a rotating bolt design, where the handle must first be rotated upward to unlock the bolt from the receiver, then pulled back to open the breech and allowing any spent cartridge case to be extracted and ejected.

Magazine (firearms)

A magazine, or simply called mag, is an ammunition storage and feeding device for a repeating firearm, either integral within the gun (internal/fixed magazine) or externally attached (detachable magazine). The magazine functions by holding several cartridges within itself and sequentially pushing each one into a position where it may be readily loaded into the barrel chamber by the firearm's moving action.

Single-shot