What is the Best Ammo for AR15?

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Few firearms can be described as truly revolutionary and even fewer revolutionary firearms become one of the best assault rifles in the world, with dozens of military forces around the globe using variations of the same design. One such firearm is the AR15, which was developed in the late 1950s and early 1960s as the new rifle for the United States military, replacing the M1 and M14 rifles, both of which fired 30 caliber bullets. The AR15 was chambered with a new type of ammo, called 223 Remington or 5.56 NATO.

Much lighter than the rifles it replaced, the AR15 soon became the top rifle choice for US forces and their allies. It was also very popular among civilian shooters in the 1970s and 80s, although its popularity exploded after the expiration of the 2004 assault weapon ban. Most AR15s fire 223 Remington or 5.56 NATO ammo, although AR15s have been chambered with a number of other ammunition types, including 22 long rifle, 204 Ruger, 6.5 Grendel, 6.8 SPC, 300 AAC Blackout, and 458 SOCOM. AR15s can also shoot pistol ammo, such as 9 mm, 40 Smith & Wesson, and 45 ACP.

The best ammo for an AR15 depends on the type of chamber the rifle has. Some AR15s are chambered for 223 Remington, and should only be used shoot 223 Remington ammo. Other AR15s have 5.56 mm NATO chambers, and they can safely shoot 223 Remington as well as 5.56 NATO ammo. Ammo selection for an AR15 also depends on twist rate, because faster twist rates such as 1/7 are capable of firing bullets up to 77 grains, while slower twist such as 1/12 can only stabilize lighter bullets, such as 55 grain FMJ. For general shooting with an AR15, FMJ ammo is a good choice, while hollowpoint ammo is better for home defense and long-range shooting.

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What's Your Favorite Ammo For a AR15?

Darcy Mott ( Thu, 10 Jan 2013 04:00:37 +0000 ) : bullets that explode in the ar15 before it kills anyone.
Sandy Sickler ( Sat, 12 Jan 2013 00:49:36 +0000 ) : you have no idea what you are implying with that statement. I have done many studies were i have laid my AR-15 on the ground to see if it would shoot by itself. To my supprise it never fired. so mabey you should think about what you say before you open your pie hole. It is the lack of safety training and security by our Gov and states.
Greg Clark ( Sun, 20 Jan 2013 01:54:40 +0000 ) : Ignorance can be cured Mott but stupid is forever. How about you blame the killer? Too big an answer for you?
Don R. Brunk ( Sat, 02 Feb 2013 19:37:12 +0000 ) : YOU CAN'T FIX STUPID. V V V V V V V V V V V V.
Gloria Arndt ( Wed, 06 Feb 2013 23:40:18 +0000 ) : 55.6
Ray Green ( Tue, 19 Feb 2013 06:46:57 +0000 ) : 56/45
Brahp MeAhh ( Thu, 28 Mar 2013 21:00:52 +0000 ) : You know Darcy, I would never hope to kill anyone with my guns, would even feel bad about killing a home invader. But the second someone breaks through my door and I shout "GET OUT OF MY HOME" and they don't.. well it's a bad day for them because I'm going to shoot them with my personal defense rounds that I load up in my shotgun which, Biden recommended and it's probably not going to be pretty. Honestly, if you wish to die by the hands of some worthless criminal then go right ahead. BUT DON'T EXPECT PEOPLE TO SIT STILL WHILE YOU MAKE STUPID COMMENTS THREATENING THE SAFETY OF INNOCENT PEOPLE JUST BECAUSE YOU WANT TO FORCE YOUR WILL ON OTHER PEOPLE. Get real you jerk. I don't know how you can say such horrible things about your fellow humans who aren't doing any harm to anyone.
Brahp MeAhh ( Thu, 28 Mar 2013 21:02:07 +0000 ) : when a round explodes in a gun it has the potential to kill the user and people near by.
( Thu, 13 Jun 2013 16:12:28 +0000 ) : In my experience in the 82nd airborne no one was injured by a weapon in the hands of a trained soldier. However when out of ammo the weapon would not fire but it appears we never run out of morons who blame the weapon not the user.
Bobby Belk ( Fri, 30 Aug 2013 22:03:55 +0000 ) : lake city
Alan Smith ( Wed, 04 Jun 2014 00:17:21 +0000 ) : WOW Mott, it seems that you are a bit short on opinions that support your ignorance. Think about it and see if you can figgure it out.
Antonio R. Briggs ( Sat, 15 Nov 2014 08:50:15 +0000 ) : Wolf
Gene Krafft ( Mon, 27 Jul 2015 01:18:22 +0000 ) : Tryed useing Golden Bear, 223, 62Gr. SP in my AR. They don't feed out of the mag worth a damned. Are SP a bad choice for AR's or is there some other issue I should check or do different? This is the first AR, I have owned, so I'm clueless. FMJ seems to feed just fine.
Joseph Landi ( Sun, 09 Aug 2015 15:33:57 +0000 ) : Bought AR 15 bushmaster. Federal ammo XM193 5.56 NATO M193 ball.Cant seem to find that ammo anywhere except dealer where I purchased weapom. Do you carry the aforementioned ammo????Yhanks
Gatot C'tukang Rese ( Wed, 02 Dec 2015 04:11:24 +0000 ) : i am to buy ammo
Ricardo Almaraz ( Tue, 22 Dec 2015 03:17:31 +0000 ) : Maybe you all should buy a good AR rifle and quit bitchin
James Kirby ( Mon, 01 Feb 2016 18:58:35 +0000 ) : You SUCK.
Donny Szczesniak ( Mon, 08 Feb 2016 04:30:38 +0000 ) : TARGETSPORTSUSA.COM
James Purnell ( Thu, 23 Jun 2016 16:33:48 +0000 ) : any ammo thats reliable.
Casey James Miller ( Fri, 24 Jun 2016 13:34:49 +0000 ) : Darcy Mott is just a complete fucking moron.