bullet explodes coming out of barrel

Discussion in 'General Rifle Discussion' started by Crazycastor, Apr 21, 2013.

  1. Crazycastor

    Crazycastor New Member

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    This has me worried. Today we took our guns out to the desert to sight them in. My father in law started first with his AR15 shooting at 25 yards. It shot two times and on the 3rd shot the bullet either exploded in flight or as it came out of the barrel. On the target you can see where the fragments hit the target. No he didn't hit the dirt in front of the target. He said it just sounded funny when he shot it. I checked out the barrel and ran a patch down it to see if any thing was left in the barrel but it came out clean. The empty brass didn't show any bad signs either. I've never seen this before so I'm posting pics of the target and the ammo. This was the only round that did this, the rest were fine. What do you guys think?
     

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  2. highpowerguy

    highpowerguy New Member

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    Call federal and let them know what happened. They will probably ask you to send the ammo back to them. And they should send you a couple of boxes back in return for your trouble. This isn't as uncommon as you would think, we had a whole lot of hornady ammo do that at the small arms firing school a few years ago. Considering that the box says urban tactical ammo it is probably supposed to be frangable if the jackets were too thin in that lot a high twist rate will very easily make them come apart. Good thing you found out at the range instead of the house.
     

  3. MattShlock

    MattShlock New Member

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    Hi speed with fast twist can do that -- bullets spin VERY fast. Especially a 55 gr. in a 1:7 twist. Over 300,000 rpm! Think about that. I am amazed they EVER stay in one piece.

    Do let Federal know and don't buy any more. Post a thread here with the title of the name of that ammo so people can search and find it. It'll get someone killed it seems to me.
     
    Last edited: Apr 21, 2013
  4. Crazycastor

    Crazycastor New Member

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    They only problem with that is we shot all the other bullets that were in the same box. He does have about 300 more rounds of that brand though.
     
  5. mrm14

    mrm14 Active Member

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    Buy the BTHP target bullets and you will be fine. My brother has an AR-10 chambered in .243 Win. and it shreds plastic tip hunting type expansion bullets because the M.V. is high and the twist rate is tight.
     
  6. Pasquanel

    Pasquanel Proud to be an American Supporter

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    One bad bullet! It happens once in a great while.
     
  7. jpattersonnh

    jpattersonnh Active Member

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    As stated above, fast twist, fast velosity, light bullet= frag
     
  8. Crazycastor

    Crazycastor New Member

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    Next time around we won't be buying those bullets with the plastic tips but at the time it was the only ones we could find during the peak of the shortage.
     
  9. Salvo

    Salvo New Member

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    I shoot bullets with the plastic tips all of the time, have never had one come apart on me.

    My .243 shoots the 58 grain Hornady V-Max at quite a clip, with no problems. - Much faster than any .223.

    May have just been one of those things, a fluke.

    Unless it happens again, I wouldn't worry about it.
     
    Last edited: Apr 21, 2013
  10. Crazycastor

    Crazycastor New Member

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    I think your right. I just can't imagine how a bullet can just go to pieces like that
     
  11. HockaLouis

    HockaLouis New Member

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    NP It won't shed its skin till it's out of the barrel. If it happens again. Just don't bet your life on them.
     
  12. highpowerguy

    highpowerguy New Member

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    We put well over 20,000 rounds of Hornady down range at Camp Perry loosing about one in fifty and it wasn't a safety concern... Although it was darn aggravating.
     
  13. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

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    It is not a fast light bullet that causes this. It is a THIN JACKETED bullet spun too fast that will do that. "Match" or "Varmint" type bullets in fast twist barrels, shot close to max velocity will give the gray "puff" about 15 feet from the muzzle. Handloaders can reduce the load to about 3000 fps and overcome this.
     
  14. Wambli

    Wambli Member

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    What he said, the bullet is not defective, the ammo is fine. Please don;t go bugging the manufacturer. You were trying to shoot ammo that is not really suitable for the gun. I can just about guarantee the barrel is stamped 1:8 or 1:7. That barrel is meant for heavier weight/heavier jacketed ammo. Buy the right ammo for your gun and you'll be fine.
     
  15. highpowerguy

    highpowerguy New Member

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    IMO any bullet labeled tactical should be able to handle 1 in 7 since that is the mil spec twist rate I would contact federal about it.
     
  16. MattShlock

    MattShlock New Member

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    I agree. What are the odds of someone NOT putting those rounds in a 1:7 to 1:9 twist barrel? I'd say it's a virtual impossibility. There was a defect in the bullet is stll my opinion unless there's something we don't know!?
     
  17. orangello

    orangello New Member

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    Pfffffffffffffffft! Silly squirrel guns shred their own bullets, LOL!

    Never have that problem with an SKS. :D
     
  18. Wambli

    Wambli Member

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    The bullet is not labeled tactical, the ammo is. That ammo is just designed to work well in short M4 barrels (14.5") and SBRs with 7"-11.5" barrels. The kind of gun you'd normaly find in a CQ encounter. You put this sucker in longer barrels where it has the room to gain full speed and you will have trouble. It is a thin jacket varmint design specially made to shed it's jacket and self destruct. It really can't handle the HIGH RPMs a fast twist puts on it. I've had that problem before with some of my ARs but never with my 10.5" SBR. Changed ammo and it's gone. LE Only Gold Dots in the 64 gr. range work really well out of fast twist guns fo SD.

    BTW I actually agree that it is silly for Federal to be marketing this bullet as Tactical without some sort of warning.
     
  19. Jpyle

    Jpyle New Member

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    What is the bullet weight and what is the barrel twist rate?
     
  20. highpowerguy

    highpowerguy New Member

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    If you split a hair fine enough your bound to find a slice you like. Notice that the OP didn't mention his barrel length but I'd be willing to lay 5 bucks down on it being a 16". That's only and inch and a half from your 14.5 which is somewhere in the ball park of 50 fps worth of average muzzle velocity. If the ammo is loaded to 3,050 fps from a 14.5 inch barrel it be spinning at 313,714 rpms. If it leaves the muzzle at 3100 fps it will spin at 318,857 rpms which represents an increase of only 1.6% in the rate of rotation. Even if you doubled this to 3% I don't think you could justify a bullet loosing its structural integrity, especially since standard deviation in SBR's regularly exceed 80 fps. So I stand by my previous statement that I would call federal and complain and feel justified doing so.
     
    Last edited: Apr 24, 2013