Primers backing out

garandfan

November 16, 2002 17:19

I loaded up some 270 rounds and on some of them the primers were sticking out slightly after being fired. The primers were not in this position when I first loaded them. I do not know what could cause this because I am not even close to the max load, and my previous 20 rounds with everything the same did not do this. The only change was a .020 decrease in OAL. Is this a cause for concern?

"To be prepared for War is one of the most
effectual means of preserving peace"-George Washington

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  Rafter-S

  November 16, 2002 18:17

  I don't know what caused the primers to back out--could be "stretched" primer pockets, or any one of a number of things.
  
  But to answer one of your questions: yes, it is a cause for concern. Anytime something out of the ordinary happens with reloads, there is an explanation. For safety's sake, find it before shooting any more of the loads.
  
  My humble opinion,
  Rafter-S

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  Rafter-S

  November 16, 2002 18:23

  One other thing. To emphasize safety in reloading, understand that when you pull the trigger on your .270, the explosion in the chamber is a "controlled bomb"...and you are detonating it 5 inches from your nose. The important word here is "controlled."
  
  My humble opinion,
  Rafter-S

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  v35

  November 16, 2002 18:48

  Excess headspace.
  You've probably set the casenecks back some during the FL resizing.
  If this happens with commercial or Mil loads the problem is with the gun.

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  garandfan

  November 16, 2002 18:58

  I didn't think it was the gun, because in the same session, I shot some factory ammo and everything was fine. I ordered the stoney point headspace gauge to find out for sure and to fix it. Also, when I fix the problem, would it be wise to throw out that brass or could I resize it correctly and use it again. Thanks for your help.
  
  "To be prepared for War is one of the most
  effectual means of preserving peace"-George Washington
  
  Edited by - garandfan on 11/17/2002 01:13:19
  
  Edited by - garandfan on 11/17/2002 01:16:09

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  chuck

  November 16, 2002 23:42

  IF YOU SET YOUR FL RESIZING DIE DOWN TO FAR YOU HAVE HEAD SPACE AND WILL LET THE PRIMERS POP OUT AND,OR SPLIT CASES.

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  Tailgunner1954

  November 17, 2002 02:09

  Yes you can save the brass, by opening the neck to 30 cal and than partialy size the neck back down to 270. Stop sizing when the case will just bairly chamber in your rifle. This will give you a "false" shoulder that will hold the case back aganst the bolt.
  To avoid having this happen in the future, use a fired factory case, reset your F/L so that it just kisses the shoulder, you don't want to push the shoulder back more than .001-.002.
  The recogmended procedure of smashing the shell holder into the die to get the "proper" adjustment is IMHO a waste of time and good brass, not to mention being hard on the press.
  

  ---

  Some guys like a mag full of lead, I still prefer one round to the head.

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  ATF

  November 17, 2002 09:59

  Don't really know if this is true.But I've heard that too light a load can cause this.
  
  
  
  ATF

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  v35

  November 17, 2002 10:33

  ATF, That's true but only if there's a visible difference between the cartridge length and the chamber length. In a tight chamber there's no place for the primer to go. This phenomenon also happens when firing a primed case or rubber bullets in a revolver without enlarging the flash hole.

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  Iconoclast

  November 17, 2002 11:22

  g-fan, before you start playing with the settings on your dies, de-cap the fired cases with protruding primers and try seating new primers. If they slip in real easily, the pockets have stretched & you should trash the brass. If the pockets are good, then do as Tailgunner suggests.

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