Oxygen cylinders should not be stored in an area where the temperature goes above 125 degrees Fahrenheit. How hot can an oxygen tank get before it explodes? It can also punch through 2 inches (5.1 cm) of rolled homogeneous armor with a direct hit (0-degree obliquity), which means it can penetrate most infantry fighting vehicles and armored personnel carriers. On impact, the grenade can kill anyone within a radius of five meters, and wound them within a radius of 15 meters.
The earliest examples of standalone grenade launchers in the modern sense were breech-loading riot guns designed to launch tear gas grenades and baton rounds, such as the Federal Riot Gun developed in the 1930s. The spinning motion of the grenade generates a strong centrifugal force that pushes the weighted pins outward. This motion is caused by the shape and position of the fins, as well as spiraled grooves inside the barrel of the grenade launcher. When the grenade is fired it begins to spin (like a well-thrown football). When fired, the expanding gases generated by the cartridges propelled the grenade forward with considerable force. The M7 grenade launcher, formally rifle grenade launcher, M7, was a 22 mm rifle grenade launcher attachment for the M1 Garand rifle that saw widespread use throughout World War II and the Korean War.
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