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That depends on what its chambered for....
Most AR-15's are chambered for the standard 5.56x45mm military round, although some will only have a .223 Remington chamber, and it not advisable to fire 5.56 rounds through these. There is also the .223 Wylde, which can handle all loadings of 5.56 and .223.
Most commercial AR15 rifles will come with a 1:9 barrel twist rate, which can accommodate both the lightweight 45 and 55 grain commercial .223 and M193 cartridges, as well as the heavier 62 grain NATO cartridges. However, when you get into loads such as the 77 grain rounds, the 1:9 barrels won't stabilise them very well. 1:8 barrel twist is the most dynamic, and can handle anything from 55 grain .223 and M193 up to the 80 grain .223 Wylde, and everything in between. 1:7 twist is a bit too fast a rifling twist for the lightweight 45/55 grain .223 rounds and the 55 grain M193 rounds, and really is a bit excessive a twist rate for the 62 grain M855/SS109 (NATO standard) cartridges. But it's great for 75, 77, 80 grain projectiles.
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What is the best ar15 out there?
pof-USA hands down
What kind of ammunition is used for an Ar15?
An AR-15 is a rifle that uses 5.56 mm bullets. It is a semi-automatic rifle. This specific type of bullet is the most commonly used bullet amongst the NATO forces.
What is the best selling gun in US?
From 2013-2015 it has been the AR15.
What bullet does an AR-15 shoot?
The typical AR15 fires the same type of bullet as the M16: a .223 caliber (5.56mmx45mm NATO) round. There are AR-15 rifles that have special barrels made for a variety of popular cartridges, even the little .22LR.
Website address for troubleshooting colt ar 15 rifle?
Try AR15.com Try AR15.com
Is 7.62 the same as 5.56?
No, the two numbers are clearly different. In a more practical note, "7.62" is the diameter (in millimeters) of a bullet typically fired from a .30 caliber rifle such as a Chinese SKS or Russian AK-47 rifle, while "5.56" is the diameter (in millimeters) of a .223 caliber bullet like the M-16 or AR15 rifle.
Can you convert a colt 22 ar15 to 223?
If it is one of the recent Colt .22LR AR15 rifles, then the answer is no - they are completely different internally.
What makes a bullet spin?
The barrel of the gun has lands and grooves (grooves and ridges) cut in a spiral. The bullet molds to these and starts to spin as it moves down the barrel. The bullet just continues to spin after it leaves the barrel.Correct. The ridges are known as 'lands'. It is possible to calculate how fast a bullet will spin if you know the twist rate of the barrel and the velocity of the bullet. My AR15 has a twist rate of 1-in-8 ie for every eight inches the bullet travels down the barrel, the bullet is rotated once. It fires a .223 round at approx 2,800 feet per second so... The formula is (bullet velocity x 720)/twist rate so... (2,800x720)/8 is an incredible 252,000RPM!
What is the name of bullet proof fiber?
The best-known bullet-proof material is probably Kevlar.
When was the first ar15 made?
1959
Can you charge an ar15 on safe?
Yes
What AR15 does the Army use?
The US Army presently uses the M4 carbine, a shorter and much modified version of the Armalite AR15.
