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5.56 ammo

thebambam2001
I am soon to load some 556 with 77 grain BTHP that do not have cannalure((sp). Can I crimp or not? These are to be shot in a 1/8 AR 15. Pressure and bullet set-back are my reason for wanting to crimp.
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7 comments

Date Votes
  • thebambam2001
    Yesterday I found some Russin made 223/5.56 ammo for 9.99 which is a lot cheaper than I have found lately. I do not know anything about this amm but I bought 100 rds anyway. It is called Brown Bear 55gr. bimetal HP boat tail with a laquered steel case and non-corrosive berdan primer. Any one know anything about this ammo? What is laquered steel? I plan on shooting it from my Colt M4 as backup ammo if I run out of what I already have.

    Thanks
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  • rufe-snow
    Lee makes what is known as a "Factory Crimp Die", to insure that the potential problem your inquiring about doesn't occur. There is a lot of information available on the net, including UTube videos. Just GOOGLE "Lee Factory Crimp Die", and a lot of stuff will come up addressing crimping bullets without cannelures.
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  • sandwarrior
    thebambam2001,

    Use the Lee Factory Crimp dies if you want or just use the dies you normally would (seater). They will give you a moderate taper crimp. Bring the die down to the case then turn 1/8th of 1 turn in. If you do not feel there is enough crimp turn in in 1/16th increments, or less, until you are satisfied.

    -good luck
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  • ammo guy
    I load the same bullet and have found that crimping is not necessary, the .223 does not generate enough recoil to move the bullet in the case.
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  • Mobuck
    It's not about the 223 recoil moving the bullet.
    It's the chance the bullet will catch the mag or edge of the chamber that presents the need for crimping.
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  • tsr1965
    quote:Originally posted by Mobuck
    It's not about the 223 recoil moving the bullet.
    It's the chance the bullet will catch the mag or edge of the chamber that presents the need for crimping.


    Then that means the bullet moved, or might move if that happens. Correct?

    Follow sandwarrior's directions, and you will be fine.

    Best
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  • Hawkshaw
    What do you think is happening to the bullet jacket, and the case when you crimp with out a cannelure. I don't think it just goes away!!! You are obviously distorting that material, (moving it to some other location)... If you don't care I sure don't. Why do you think bullet manufacturers put cannelures on some bullets???
    HAWKSHAW
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