For anyone that knows anything around Superheroes, the expression for Superman was always “faster 보다 a speeding bullet”. That an adage designed to give the impression of good speed.But that begs a really noticeable question, precisely how rapid is a bullet?Bullets come in various calibers (diameter that the bullet) and this approximately is the determining element in bullet speed. A 22lr caliber bullet will departure the barrel between 1200 and also 1750 feet per second (820 come 1200 miles every hour). The larger .50 caliber round will be between 2800 to 3150 fps (1900 come 2100 mph). A common 9mm handgun would certainly be approximately 1200 fps (820 mph).

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That’s quite a selection but it appears the very big calibers because that long selection shooting have a cartridge speed about twice that of the tiny caliber rounds.There space a lot of of factors though, and there is no an easy answer to the question, so let’s walk v it.
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What do We typical By bullet Speed?

Speed in the real world has plenty of different connotations and also is standardization in countless different ways.We measure continent drift a lot in different way than us measure train speed.In the people of firearms, that can acquire pretty complex as over there are plenty of different calibers, rifle manufacturers, ammunition manufacturers, barrel lengths, and also weights.Additionally, the selection is varied, the cartridge moves over a trajectory and the timeframe is quick.To somewhat standardize the procedure the firearms industry will certainly quote a bullet weight, for a offered caliber and also the speed measured is that as it exits the barrel, in essence, when the propellant stops acting upon the round.The rate at i beg your pardon a bullet is moving the minute it leaves the barrel is recognized as the muzzle velocity.It is generally measured in feet per 2nd (fps or ft/s), meter per second (m/s), and also occasionally you will see it quoted in miles per hour (mph).Thus you could see a 125 grain 9mm round quoted as having a muzzle velocity that 1225 fps.

Bullet speed By Caliber

As the speed of a cartridge is quoted for a provided caliber (and cartridge), the is advantageous to see what type of rounds carry out with respect to muzzle velocities.What i did to be go v each caliber and find the lowest and also highest muzzle velocities for each caliber.The table below is tabulated by enhancing cartridge size, and usually a farming caliber. For each caliber and an mean muzzle velocity is quoted.RoundCaliberMuzzle velocity.22LR0.223 in (5.7 mm)1,500 ft/s (1022 mph)5.56/2230.224 in (5.7 mm)3,160 ft/s (2155 mph).380 ACP0.355 in (9.0 mm)1,125 ft/s (767 mph)9mm0.355 in (9.0 mm)1,200 ft/s (820 mph).38 SPL0.357 in (9.1 mm)1,100 ft/s (750 mph).357 Mag0.357 in (9.1 mm)1,500 ft/s (1022 mph).40 S&W0.400 in (10.2 mm)1,200 ft/s (820 mph)10mm0.400 in (10.17 mm)1,300 ft/s (885 mph).45 ACP0.452 in (11.5 mm)1,100 ft/s (750 mph).308 Winchester0.308 in (7.8 mm)2,650 ft/s (1800 mph).30-06 Springfield0.308 in (7.8 mm)2,850 ft/s (1940 mph).338 Lapua Magnum0.338 in (8.58 mm)3,100 ft/s (2115 mph).50 BMG0.510 in (13.0 mm)3,000 ft/s (2050 mph)
Firstly, this was just a table placed together to discover if over there are any kind of useful details that could be determined.The selection of speed obtainable by generally used rounds arrays from about 800 mph come 2100mph.Something interesting to allude out is the .22LR and also .223 Remington have actually the very same bullet caliber, yet vastly different bullet speeds. This is as a result of the cartridge, i m sorry is draft for armed forces purposes.Predictably though, the rifle calibers designed because that long selection competitive shooting and also game hunting, develop the highest possible velocities.
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How rapid Do Bullets travel After 100 Yards?

The second the bullet pipeline the barrel it starts to slow-moving down.Without the force of the propellant no much longer acting ~ above the round, and also air resistance taking effect the round starts the long process of slowing down.I plugged some common rounds into a ballistics calculator and also tabulated castle below.CaliberMuzzle velocityMuzzle velocity – 100 yds.22LR1469 fps1128 fps9mm1120 fps960 fps.30-06 Springfield2800 fps2597 fps.308 Winchester2820 fps2598 fps.338 Lapua Magnum2800 fps2681 fps
So, depending on usage, a round has lost 8 to 25% that its early muzzle velocity ~ 100 yards.

What Factors influence Bullet Speed

While over there are numerous rather subjective factors that affect bullet speed choose inclination of aim, temperature and twist rate, there space a couple of factors that make a huge difference.These are;Bullet grain – This is basically the load of the bullet. From and also given caliber the cartridge can selection by quite a weight. A heavier bullet is harder to accelerate than a lighter one, so various other things being same a lighter bullet will leave with a higher muzzle velocity.Barrel length – The longer the propellant plot upon the cartridge the longer the cartridge is accelerating/ The longer the barrel the longer this impact acts upon the bullet. Hence a much longer barrel will rise muzzle velocity.Cartridge – This is the amount and form of propellant behind the bullet. A 22LR bullet exits at approximately 1500 fps however the similar sized .223 Remington has a enlarge cartridge behind it, so exit at end 3000 fps.So a lighter bullet, in a longer barrel with a large cartridge of efficient propellant will create the highest possible muzzle velocity and thus rate of the bullet.

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Final Thoughts

Bullet speed could be assumed of as an interesting but ultimately trivial exercise.. Obtain struck through a bullet and you and also whatever it access time takes a lethal wound.The truth is it matters, particularly at selection as the a crucial component in wound lethality i m sorry is important when a bullet is used in the self defense role. Especially against armor.The FBI has a typical test the caliber, and also a round must have a certain penetration depth come be believed optimal because that a defense role. If a round penetrates between 12 come 18 inch of ballistics gel then that is considered optimal. Less, and also it’s not good enough, and an ext risks the bullet passing v a target and possibly injuring an innocent bystander.Additionally, the is thought that a bullet must be travel at least 250 fps to have actually a 50% chance of penetrating the skin.A slow bullet is also an ext blown off course by the wind for this reason it’s taken into account by long range snipers.Bullet rate is one interesting and also deep topic, yet for most, it’s an interesting piece of info rather 보다 anything practical. As most rounds room lethal beyond where they can be accurately aimed, is there anything actually wrong v that.