im new to ammo ?

Discussion in 'Ammunition & Reloading' started by Ultimate_sig, Oct 1, 2012.

  1. Ultimate_sig

    Ultimate_sig New Member

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    I know alot of guns and im looking into diffrent ammo and i bought these cause they were fragmental but has anyone used thrse. There winchester 5.56 45 grain jacketed frangible rounds

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  2. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    I deleted the previous posts because they were just plain WRONG. Please people, don't post a bunch of urban legends.

    A 1/12 barrel was designed for the length of a 55 gr bullet. Some 1/12 barrels seem to do remarkably well with bullets as heavy as 64 grains.
    a 1/7 barrel is optimized for the length of the 62 gr TRACER round which is significantly longer than the 62 gr penetrator ammo.

    Most 1/7 barrels will shoot very well with bullets from 45 - 75 gr. My 1/7 Colt carbine shoots 55 gr into 3/4" groups.

    The frangible bullets are light because they do not contain any lead. The bullet is about the length of a 55 gr (or perhaps a little longer). They shoot fine through every gun I have seen. 1/12's 1/10's (mini-14's) 1/9's 1/8's 1/7's There is zero reason to believe it will not shoot ok in your gun. Remember, these bullets are designed for preventing ricochets in training. They are not designed to be defensive bullets, they are not designed to fragment in soft targets. They also have very low sectional densities and do not perform well a longer ranges.
     

  3. Ultimate_sig

    Ultimate_sig New Member

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    Thankyou, yea i sized it up to a regular 5.56 and its a tad larger.
     
  4. willfully armed

    willfully armed New Member

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    The offended is right. Length means nothing to twist. Its weight.
     
  5. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    OK Will, let me make this clear. It is not mass, weight, density, or placement on the periodic table. It is length. The 1/7 barrel was adopted for the 62 gr bullet. The 62 gr penetrator shoots pretty well in the 1/12 barrels. The 62 gr TRACER will not stabilize in anything slower than 1/7 because the tracer is significantly longer than the standard ball/penetrator bullet.

    It IS length.
     
  6. Ultimate_sig

    Ultimate_sig New Member

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    So whats the best round for 1n7
     
  7. tri70

    tri70 New Member

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    You will have to shoot what your gun likes, most will shoot 55-80 gr stuff but only testing your rifle will tell.
     
  8. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    My 1/7 will shoot the Winchester 64 gr Power Point into 3/4" groups. That is a great bullet. The new Speer Gold Dot is also sub-1".
     
  9. locutus

    locutus Well-Known Member Supporter

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    My Colt LE6940. 1/7 shoots M193 ball (55 grain) and M855 ball (62 grain penetrator) equally well.

    1 inch FIVE SHOT are normal. This is outstanding for military ammunition.