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Author Topic: Ammo Difference  (Read 317 times)

Doug-e90

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Ammo Difference
« on: June 26, 2020, 12:52:58 pm »
I feel like this is a stupid questions, but I'm a new rifle owner, so I just wanna be sure I buy the right ammo. I have a 5.56 AR. Is there a difference between 223 and .223 ammo or are they the same?

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    qkarl

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    Re: Ammo Difference
    « Reply #1 on: June 26, 2020, 12:58:30 pm »
    There are some slight differences but you can put both 5.56 ammo and .223 ammo inside a 5.56 AR. Typically, .223 will be slightly slower than 5.56.

    Doug-e90

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    Re: Ammo Difference
    « Reply #2 on: June 26, 2020, 01:01:29 pm »
    So 223 is 5.56 then, right?

    qkarl

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    Re: Ammo Difference
    « Reply #3 on: June 26, 2020, 01:06:13 pm »
    5.56 is different from .223, but they are similar enough that a 5.56 gun can shoot .223. It's not recommended to go the other way around (shoot 5.56 ammo in a .223 gun) since the 5.56 ammo produces greater pressures in the gun than .223 ammo. Here's a pretty decent explanation of the differences between the two rounds that I'd recommend taking a look at: https://www.luckygunner.com/labs/5-56-vs-223/

    FreeInAZ

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    Re: Ammo Difference
    « Reply #4 on: June 26, 2020, 04:57:22 pm »
    I feel like this is a stupid questions, but I'm a new rifle owner, so I just wanna be sure I buy the right ammo. I have a 5.56 AR. Is there a difference between 223 and .223 ammo or are they the same?

    Not stupid question at all. They are very similar cartridges; if you know pistols(?) think .357 magnum revolver...you can shoot 38spl cartridges (shorter OAL over all length & lower pressure) but not the other way around due to the .357 being too long in a 38spl chamber/cyclinder & higher pressures. So even though some "special chambers" marked .223 WYLDE will accept 5.56 cartridges the safe bet is: if it says .223 on the barrel, only use .223. If it says 5.56 you can use both .223 & 5.56
     :thumbsup
    « Last Edit: June 26, 2020, 05:07:22 pm by FreeInAZ »
    Better to die on our feet than live on our knees! "The art of war teaches us to rely not on the likelihood of the enemy's not coming, but on our own readiness to receive him; not on the chance of his not attacking, but rather on the fact that we have made our position unassailable." -Sun Tzu

    FreeInAZ

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    Re: Ammo Difference
    « Reply #5 on: June 26, 2020, 05:03:07 pm »
    5.56 is different from .223, but they are similar enough that a 5.56 gun can shoot .223. It's not recommended to go the other way around (shoot 5.56 ammo in a .223 gun) since the 5.56 ammo produces greater pressures in the gun than .223 ammo. Here's a pretty decent explanation of the differences between the two rounds that I'd recommend taking a look at: https://www.luckygunner.com/labs/5-56-vs-223/

    YEP ^^^ :thumbup
    Better to die on our feet than live on our knees! "The art of war teaches us to rely not on the likelihood of the enemy's not coming, but on our own readiness to receive him; not on the chance of his not attacking, but rather on the fact that we have made our position unassailable." -Sun Tzu

    Unpleasant

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    Re: Ammo Difference
    « Reply #6 on: June 26, 2020, 08:46:03 pm »
    The brand and the weight of the bullet are going to have the most effect on the accuracy. You'll find if you buy a bunch of 20rnd boxes of different weights and brands.. be a little scientific about shooting groups with them, and you'll find that some loads definitely stand out ahead of others with the grouping. I realize today is kind of a "find whatever you can get your hands on" type availability. If it's a scoped rifle.. Try the 64-77gr hornady, BH, or IMI ammo. If it's irons or a red dot, anything goes.

    Usually M855 we have access to is Lake city rejects, and you shouldn't expect too much from it.

    Sabertooth

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    Re: Ammo Difference
    « Reply #7 on: July 01, 2020, 07:22:23 pm »
    5.56 is different from .223, but they are similar enough that a 5.56 gun can shoot .223. It's not recommended to go the other way around (shoot 5.56 ammo in a .223 gun) since the 5.56 ammo produces greater pressures in the gun than .223 ammo. Here's a pretty decent explanation of the differences between the two rounds that I'd recommend taking a look at: https://www.luckygunner.com/labs/5-56-vs-223/

    Nailed it!

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