Rimfire ammunition (RF) is a type of firearm metallic cartridge whose primer is located within a hollow circumferential rim protruding from the base of its casing. When fired, the gun's firing pin will strike and crush the rim against the edge of the barrel breech, sparking the primer compound within the rim, and in turn ignite the propellant within the case. Invented in 1845, by Louis-Nicolas Flobert, the first rimfire metallic cartridge was the .22 BB Cap cartridge, which consisted of a percussion cap with a bullet attached to the top. While many other different cartridge priming methods have been tried since the mid-19th century onwards, such as pinfire, only small caliber rimfire and centerfire cartridges have survived to the present day with regular usage. The .22 Long Rifle rimfire cartridge, introduced in 1887, is by far the most common ammunition in the world today in terms of units sold.
The .410 bore (10.4 mm) is one of the smallest caliber of shotgun shell commonly available. A .410 bore shotgun loaded with shot shells is well suited for small game hunting and pest control. The .410 started off in the United Kingdom as a garden gun along with the .360 and the No. 3 bore (9 mm) rimfire, No. 2 bore (7 mm) rimfire, and No. 1 bore (6 mm) rimfire. .410 shells have similar base dimensions to the .45 Colt cartridge, allowing many single-shot firearms, as well as derringers and revolvers chambered in that caliber, to fire .410 shot shells without any modifications.
The .22 Winchester Magnum Rimfire, also called .22 WMR, .22 Magnum, .22 WMRF, .22 MRF, or .22 Mag, is a rimfire cartridge. Originally loaded with a bullet weight of 40 grains (2.6 g) delivering velocities in the 2,000 feet per second (610 m/s) range from a rifle barrel, .22 WMR is now loaded with bullet weights ranging from 50 grains (3.2 g) at 1,530 feet per second (470 m/s) to 30 grains (1.9 g) at 2,200 feet per second (670 m/s).
The Ruger 10/22 is a series of semi-automatic rifles produced by American firearm manufacturer Sturm, Ruger & Co., chambered for the .22 Long Rifle rimfire cartridge. It uses a patented 10-round rotary magazine, though higher capacity box magazines are also available. The standard carbine version of the Ruger 10/22 has been in production continuously since 1964, making it one of the most successful rimfire rifle designs in history, with numerous third party manufacturers making parts and accessories for upgrading and customization. The 10/22's aftermarket is so prolific that a complete 10/22 can be built without using any Ruger-made components.
The gauge of a firearm is a unit of measurement used to express the inner diameter of the barrel.
Marlin Firearms Co. is an American manufacturer of semi-automatic, lever-action, and bolt-action rifles. In the past, the company, now based in Madison, North Carolina, and formerly based in North Haven, Connecticut, made shotguns, derringers, and revolvers. Marlin owned the firearm manufacturer H&R Firearms. In 2007, Remington Arms, part of the Remington Outdoor Company, acquired Marlin Firearms. Remington produced Marlin-brand firearms at its Kentucky and New York manufacturing facilities. In 2020, Sturm, Ruger & Co. bought the Marlin business from bankrupt Remington Outdoor Company.
H&R 1871, LLC, or more commonly known as Harrington & Richardson, is an American brand of firearms and a subsidiary of JJE Capital Holdings. H&R ceased independent production February 27, 2015.
A combination gun is a firearm that usually comprises at least one rifled barrel and one smoothbore barrel, that is typically used with shot or some type of shotgun slug. Most have been break-action guns, although there have been other designs as well. Combination guns using one rifled and one smoothbore barrel are commonly found in an over-and-under configuration, while the side-by-side configuration is usually referred to as a cape gun. A combination gun with more than two barrels is called a drilling with three barrels, a vierling with four barrels, and a fünfling with five barrels. Combination guns generally use rimmed cartridges, as rimless cartridges are usually more difficult to extract from a break-action firearm.
The M6 Aircrew Survival Weapon was a specially-made .22 Hornet over .410 bore combination gun issued to United States Air Force aircrews to help forage for food in the event of a plane crash. It was issued from 1952 until the early 1970s, in conjunction with the M4 Survival Rifle. Plans to replace both with the ArmaLite AR-5 never came to fruition and in 2018 was instead replaced with the GAU-5A Aircrew Self Defense Weapon in some instances.
The Mare's Leg is the name given to a customized shortened rifle used by Steve McQueen's character on the television series Wanted: Dead or Alive (1958–1961). McQueen's character was named Josh Randall. Mare's Leg is now a generic term for a Winchester Model 1892 with a shortened barrel and stock.
The Springfield Armory M6 Scout is a .22 Hornet over .410 bore combination gun that is virtually identical to the original M6 Aircrew Survival Weapon. It is also made in .22 Long Rifle over .410 bore and .22 Magnum over .410 bore. The Scouts are made with 18.25 inches (46.4 cm) barrels, as opposed to the original M6's 14 inches (36 cm) barrel length, to comply with National Firearms Act. The later models have large over-sized trigger guards and Picatinny rails for mounting a wide range of sights and scopes. They come in stainless steel or with a Parkerized finish.
Chiappa Firearms, Armi Sport di Chiappa, is an Italian firearms manufacturing company based in Brescia. It was founded in 1958 by Ezechiele Chiappa as Armi Sport. Total unit production is around 60,000 per year. Its U.S. headquarters are in Dayton, Ohio.
The Savage Model 24 is an American made over-and-under combination gun manufactured by Savage Arms. The basic .22LR over .410 gauge model weighs 7 pounds, has 24-inch barrels and an overall length of 41-inches. It may also be disassembled for ease of storage.
Garden guns are small bore shotguns commonly used by gardeners and farmers for pest control. They are made to fire small gauges such as .410 bore, .360 bore, 9mm Flobert, 7mm Flobert, and .22 Winchester Magnum Rimfire or .22 long rifle rimfire shotshells. They are short-range shotguns that can do little harm past 15 to 20 yards, and they are relatively quiet when fired with rimfire ammunition. These guns are especially suitable for use inside barns and sheds, as the low-velocity small shot will not penetrate roofs or walls, or injure livestock with a ricochet. Such guns are also used for pest control at airports, warehouses, stockyards, etc.
The Chiappa M6 Survival Gun is an over and under combination gun that comes in four versions; 12 gauge over .22 LR, 12 gauge over .22 WMR, 20 gauge over .22 LR, and 20 gauge over .22 WMR. It has a similar appearance to the original M6 Aircrew Survival Weapon, with a skeletonized metal buttstock surrounding a polypropylene foam insert. It uses double triggers and an enclosed firing mechanism.
The Chiappa Double Badger is an Italian made over and under combination gun manufactured by Chiappa Firearms. It comes in four versions: .22 LR over .410 bore, .22 WMR over .410 bore, .22 LR over 20 gauge, and .243 Winchester over .410 bore. It's marketed as "a great choice for hunting, survival, or fun recreational shooting".
The Chiappa Triple Crown is a family of Italian-made triple-barrel, break-action shotguns, chambered in 12-gauge, 20-gauge, 28-gauge, and .410 bore. The barrels have a triangular arrangement with one on top and two below. This gives the Triple Crown a single-barrel sight picture.
Louis-Nicolas Flobert (1819–1894) was a French inventor. He invented the first rimfire metallic cartridge in 1845. It was a major innovation in firearms ammunition, previously delivered as separate bullets and powder. The rimfire cartridge combined both elements in a single metallic cartridge containing a percussion cap, powder and a bullet, in one weatherproof package. Before that, a "cartridge" was simply a pre-measured quantity of gunpowder together with a ball (bullet), in a small cloth bag which also acted as wadding for the charge and ball.
Sako Quad is a bolt-action rifle made by the Finnish firearms manufacturer Sako. Quad is delivered in many configurations, and has a quick change barrel system which lets the user swap barrels using a 5 mm hex key. The bolt lift is 50 degrees. Sako Quad factory barrels are delivered chambered for .17 Mach 2, .22 LR, .17 HMR and .22 WMR. There are two types of magazines, one type for the shorter .17 M2 and .22 LR, and another for .17 HMR and .22 WMR. Visually, the Sako Quad has many similarities with Sako Finnfire. The Quad is delivered with a blued receiver and barrel, and the barrels are color coded according to their chambering. In cooperation with Sako, Burris has developed a scope sight with corresponding color coding on its elevation turret to match the ballistics of the different cartridges. The stock is available in either wood or synthetic material. The synthetic stock is available with a rubberized grip. The trigger is adjustable from 500 g to 2000 g.
