Factors that influence the speed of a bullet when fired from a weapon are broadly divided into two categories, namely internal ballistics and external ballistics. Photo/Live Science
WASHINGTON – Never know what speed bullets after being shot? It turns out the answer depends on the design of the bullet and weapon. Including various environmental factors that influence it.
Factor affecting speed Bullets when fired from weapons are broadly divided into two categories, namely internal ballistics and external ballistics. Included in the internal ballistics category are the type of propellant, bullet weight, and the shape and length of the weapon barrel.
Meanwhile, external ballistics includes the force exerted by wind, gravity and the trajectory when the projectile is fired. Then those two factors are put into a third category, called terminal ballistics, which describes the behavior of the bullet when it hits the target.
Michael Haag, a forensic scientist and founder of Forensic Science Consultants, said that most bullets are made of heavy metals such as lead, plated with brass or copper. This combination of metal masses helps the bullet maintain its momentum.
“Once gunpowder ignites, it burns very quickly, producing gases that push the bullet down the barrel. “This is truly a miracle of chemical engineering,” Haag told Live Science, Sunday (10/9/2023).
As it moves towards the muzzle, the bullet rubs against the sides of the barrel, creating friction. However, guns with longer barrels produce the fastest shots.
“The barrel is the biggest limiting factor on speed. “The longer the barrel, the farther the gas has to travel to build velocity, and the faster the bullet leaves the barrel,” said Stephanie Walcott, a forensic scientist at Virginia Commonwealth University.
2023-09-10 15:24:58
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