GUN Rechambering rounds = bad news :noes:

Discussion in 'On Topic' started by hsmith, Oct 23, 2007.

  1. hsmith

    hsmith OT Supporter

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    found this over at opencarry

    someone did a test to see how it did on their ammo :eek5:

    i would never have thought it would have had that big of an impact :o
     
  2. Ebtromba

    Ebtromba Active Member

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  3. smartypants

    smartypants New Member

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    Interesting.
    BTW nice post.
     
  4. smartypants

    smartypants New Member

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    Be interesting to bench test it with a weapon. I'll ask our armorer.
    See what the "magic number" is
     
  5. Paul Revere

    Paul Revere OT Supporter

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  6. Shiva Chaos

    Shiva Chaos i see boobies!

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  7. Coottie

    Coottie BOOMER......SOONER OT Supporter

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    wow

    Anyone know what is a safe amount of compression?
     
  8. TL1000RSquid

    TL1000RSquid ΜΟΛΩΝ ΛΑΒΕ

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    I thought it was common knowledge not to constantly rechamber the same bullet :dunno:
     
  9. Ebtromba

    Ebtromba Active Member

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    which is why you are our fearless leader
     
  10. Coottie

    Coottie BOOMER......SOONER OT Supporter

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    Who was it that said, "If common knowledge is all that common, why is everyone still so stupid?"

    Since I'm new to guns, this is totally news to me. I had no idea that this could be an issue. I'm not even sure I understand how this could actually happen...but then again, I'm so new I don't know the inner workings of a gun.
     
  11. Ebtromba

    Ebtromba Active Member

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    so this is essentially a kB right? although not caused by weakened brass.
     
  12. Thunderbear

    Thunderbear Yggdrasil's Forester.

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    As I recall, .40 and .45 are known to have problems with this, .40 with it's flat nose and sharp profile, and .45 because of noncrimping. 9mm not so much, due to the more tapered round profile. Either way, my carry ammo gets dumped down range on an average of two rechamberings or so. 9/40/380/45 all of them.
     
  13. striker754

    striker754 Chillin

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    depends on load, bullet weight and what depth it is seated at already
     
  14. Gimik

    Gimik New Member

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    as I was told, the round hits the feed ramp and is diverted up. When it hits the feed ramp, it is compressed a tiny bit (as you can see in the pictures). Do this over and over, and you have this problem.
     
  15. hsmith

    hsmith OT Supporter

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    I never knew about it :dunno:

    now that i do it makes perfect cents
     
  16. PanzerAce

    PanzerAce Active Member

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    Good to know. Personally though, when I get a pistol, I plan on just running my HP through the gun to empty the mags. Makes sure that they all feed I figure :dunno:
     
  17. AustinL911

    AustinL911 Illudium Q-36 Explosive Space Modulator

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    Wow. Didn't really give that a thought. I knew you weren't supposed to rechamber a round over and over, but I never really thought why. Makes cents.

    Oh, and:

    "Sigarms Inc's peronnel confirm that reloading the same round five or six times will cause problems, noting that reloading the same round even once will void their warranty"

    Why does this not suprise me?
     
  18. Furner

    Furner New Member

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    that reminds me, i need to dump all my carry ammo and resupply
     
  19. PanzerAce

    PanzerAce Active Member

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    Almost every gun company is like that :dunno:
     
  20. blindarrow

    blindarrow New Member

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    Interesting.

    I tend to do a carry ammo dump after 3 trips to the range.. I'll drop all HP carry ammo out into a pile, load up cheap stuff, fire away, then throw HPs back in when done. After 3 trips, I'll purchase a new box of HPs and carry them with me to the range.. blow through the old, then reload the new at the end.
     
  21. AB13

    AB13 New Member

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    I'm assuming that that's a .40. Because that is pretty darn long. Those bullets would NOT load in a glock for sure. Glock mags will bind after anything beyond 1.17.

    Bullet set back affects longer bullets much more than what I load to, and I have many friends that load longer. I never load that long. I generally would never load beyond 1.15, simply because they won't feed reliably for my pistols.

    But it all depends on what kind of powder is loaded as well, as it does create more pressure with a faster burning powder.

    This is why I use a totally different magazine for my defensive loads, than what I use for my matches/range duty.
     
  22. itchiban

    itchiban New Member

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    I had my own experience with setback once. I posted the pic on here like 3-4 years ago. It was on my carry Hydra's and it's been too long now to remember exactly, but I think it was only chambered 2 or 3 times. I've always had a habit of reloading a chambered round first, so it's at the bottom of the mag. Just to keep them recycled. I dont mess around anymore though and usually dump my carry ammo after about a month.

    I carry gold dots now. :o

    Oh this was on my XD40. I buffed/polished/dremel'd the hell out of the feed ramp too. It was like a mirror.

    Found the pic:

    [​IMG]
     
  23. idleprocess

    idleprocess Bring a dollar with you baby in the cold cold grou

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    I have a partial box of my defensive ammo in the drawer with the weapon. Before going to the range, I eject the chambered round and drop it into the box in a random spot. After returning from the range, I pick a random round from the box and rechamber. Keeps me from chambering the same round again and again, but it's not terribly consistent either.

    If 147gr 9mm HST were easier to locate, I'd just slowly cycle through it at the range.
     
  24. RonJeremey

    RonJeremey OT Supporter

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    Me too... This is why I always just change my mag and shoot the one in the chamber...
     
  25. Cannondale

    Cannondale OT Supporter

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    So, I got some reloaded ammo at the local gun show from a reputable company. I just happened to be sifting through looking for any unusable rounds. Found one with the bullet pushed WAY in. I'm going through them now looking for any more.
     

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