Remington firearms production increased during the Civil War, a time when Remington rifles and muskets where used extensively in the Union Army. Firearms production continued, but it wasn’t until 1871 that Remington’s ammunition branch was established. This department produced ammo for shotguns, pistols, and rifles. Two years later, Remington actually manufactured the world’s first effective typewriter, further establishing their place as an innovation leader. By the turn of the century, Remington was a major company for both firearms and ammunition. They were so important to American forces that they provided roughly half the small-arms ammunition used by Allied forces during World War I. During the second world war, Remington produced over half of the ammo used by American forces and our allies. Remington is not just an icon in the U.S. Guatemala actually has two Remington rifles crossing each other on their national flag. Remington continued to innovate throughout the 20th century, creating numerous firearms, especially in the area of hunting shotguns and rifles. They have been innovators in ammunition as well, creating several rifle cartridges that carry their name, including the .30 Remington AR, the .223 Remington, and the .260 Remington. Filter By:
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Modern primers are basically improved percussion caps with shock-sensitive chemicals (e.g. lead styphnate) enclosed in a small button-shaped capsule. In the early paper cartridges, invented not long after the percussion cap, the primer was located deep inside the cartridge just behind the bullet, requiring a very thin and elongated firing pin to pierce the paper casing. Such guns were known as needle guns, the most famous of which was decisive in the Prussian victory over the Austrians at Königgrätz in 1866.
Blanks are used in training, but do not always cause a gun to behave the same as live ammunition does; recoil is always far weaker, and some automatic guns only cycle correctly when the gun is fitted with a blank-firing adaptor to confine gas pressure within the barrel to operate the gas system.
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[5] Conversely, steel is more susceptible to contamination and damage so all such cases are varnished or otherwise sealed against the elements. One downside caused by the increased strength of steel in the neck of these cases (compared to the annealed neck of a brass case) is that propellant gas can blow back past the neck and leak into the chamber. Constituents of these gases condense on the (relatively cold) chamber wall, and this solid propellant residue can make extraction of fired cases difficult. This is less of a problem for small arms of the former Warsaw Pact nations, which were designed with much looser chamber tolerances than NATO weapons.[citation needed]
However, current production rifles from Marlin, Ruger, and Browning can accept loads that generate nearly twice the pressure generated by the original black powder cartridges.
To perform a firing, the round is first inserted into a "ready" position within the chamber aligned with the bore axis (i.e. "in battery"). While in the chamber, the cartridge case obturates all other directions except the bore to the front, reinforced by a breechblock or a locked bolt from behind, designating the forward direction as the path of least resistance. When the trigger is pulled, the sear disengages and releases the hammer/striker, causing the firing pin to impact the primer embedded in the base of the cartridge. The shock-sensitive chemical in the primer then creates a jet of sparks that travels into the case and ignites the main propellant charge within, causing the powders to deflagrate (but not detonate). This rapid exothermic combustion yields a mixture of highly energetic gases and generates a very high pressure inside the case, often fire-forming it against the chamber wall.
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The closed-off rear end of the case body, which holds the primer and technically is the case base, is called the case head as it is the most prominent and frequently the widest part of the case. There is a circumferential flange at the case head called a rim, which provides a lip for the extractor to buy remington ammo engage. Depending on whether and how the rim protrudes beyond the maximum case body diameter, the case can be classified as either "rimmed", "semi-rimmed", "rimless", "rebated", or "belted".
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In short, M855 is loaded with a 62 grain bullet while M193 has a lighter M193 bullet. M855 typically is also better at penetrating a target. We did some penetration testing over at the School of Guns, for an in-depth explanation of M855 vs. M193, click here.