The term “trapdoor” is a generic name for several models of U.S. Army rifles, starting with the little-known Model 1865 .58 Rimfire, then the Model 1866, and eventually the Models 1868 and 1870.
![Trapdoors - Down Range](https://magarticles.magzter.com/articles/7146/222278/591ebce9abf3f/Trapdoors-Down-Range.jpg)
Those last three were all chambered for .50 Government (1.75-inch case), commonly called .50-70 today. By 1873 the essential trapdoor idea was remodeled for use on the Models 1873 and 1884. These were chambered for .45 Government (2.10-inch case), known today as .45-70.
A fact about trapdoors that has led to considerable confusion over the past 150 years is their model stampings combined with their many subvariations. For instance, there are several subvariations of trapdoor .45 carbines. There are references to Models 1873, 1877, 1879 and 1884. They all differ, but the only markings put on them were “Model 1873” and “Model 1884,” as found on the top front of the breech block. The same is true with rifles, despite oddities such as an 1888 version with ramrod bayonets being made to the tune of 65,000.
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Esta historia es de la edición July - August 2017 de Rifle.
Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.
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![CIMARRON .32-20 Short Rifle & Carbine](https://reseuro.magzter.com/100x125/articles/7146/943763/wzF6E6vY91658311836193/CIMARRON-3220-SHORT-RIFLE-CARBINE.jpg)
CIMARRON .32-20 Short Rifle & Carbine
In the heyday of Winchester Repeating Arms Company lever guns, it offered muskets, standard rifles, short rifles and saddle ring carbines.
![Remington's Model 722 and .222 Cartridge](https://reseuro.magzter.com/100x125/articles/7146/943760/nNlnbDeTj1653640265074/crp_Remingtons-Model-722-and-222-Cartridge.jpg)
Remington's Model 722 and .222 Cartridge
It's easy enough to define what a varmint is, those pesky critters that tear up pastures, flower beds and all kinds of expensive crops people need for various reasons - most importantly, to make a living and/or something with which to feed themselves.
![Coyote Bullets](https://reseuro.magzter.com/100x125/articles/7146/943760/8otznQPhN1653643304791/crp_Coyote-Bullets.jpg)
Coyote Bullets
What is Best for You?
![Remington's 5mm Rimfire Magnum](https://reseuro.magzter.com/100x125/articles/7146/943760/z-uHNxDnL1653642373306/crp_Remingtons-5mm-Rimfire-Magnum.jpg)
Remington's 5mm Rimfire Magnum
Shooting a Classic
![Winchester's New Wildcat](https://reseuro.magzter.com/100x125/articles/7146/943760/iqRZlKoaP1653647217487/crp_Winchesters-New-Wildcat.jpg)
Winchester's New Wildcat
The Ultralight Rimfire Varmint Rifle
![.223 Remington from .30-30 Winchester?](https://reseuro.magzter.com/100x125/articles/7146/943760/9xILyCHga1653646675529/crp_223-Remington-from-30-30-Winchester.jpg)
.223 Remington from .30-30 Winchester?
Multitasking for Varmints
![LOADS FOR A .22 TCM](https://reseuro.magzter.com/100x125/articles/7146/943760/AQgsDUFyg1653644848775/crp_LOADS-FOR-A-22-TCM.jpg)
LOADS FOR A .22 TCM
The .22 TCM first appeared commercially in 2012, chambered in a Rock Island Armory 1911-style handgun.
![Everybody Loves Velocity](https://reseuro.magzter.com/100x125/articles/7146/943760/BL7HZ8zio1653645599272/crp_Everybody-Loves-Velocity.jpg)
Everybody Loves Velocity
The 4,500-fps WSSM Project
![A BOLT-ACTION FRANCHI 224 VALKYRIE](https://reseuro.magzter.com/100x125/articles/7146/943760/o_3wtrkRH1653641507832/crp_A-BOLT-ACTION-FRANCHI-224-VALKYRIE.jpg)
A BOLT-ACTION FRANCHI 224 VALKYRIE
Testing New Loads
![.22 Winchester Magnum Rimfire](https://reseuro.magzter.com/100x125/articles/7146/943760/1P77w5p_L1653647884573/crp_22-Winchester-Magnum-Rimfire.jpg)
.22 Winchester Magnum Rimfire
Shooting Revolvers