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Over pressure?

Discussion in 'Ammo & Reloading' started by kwaynem, Mar 2, 2019.

  1. Ignored Member

    Ignored Member Sharpshooter

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    My Savage does that once every 10-15 rounds with reloads and factory. My reloads are on the low end of the Speer manual, and never look like that after shooting the same batch in my AR.
     
  2. DRC458

    DRC458 Sharpshooter

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    You don't say what bullet weight. Your powder charge is meaningless without knowing bullet weight.
     
  3. swampratt

    swampratt Sharpshooter

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    Federal primers are softer cup than CCI and will flow or crater more and flatten much more.
    Those primers do not look too bad really You may have a loose fitting firing pin.
    I have some dandy loads that make a primer look much flatter than yours.
    Primers are not the end all pressure indicator.
    I never go by primer unless it is pierced and I have loaded brass to the point of piercing primers just too see what max really was for different primers.
    It was a test in .223 with CCI 400 cci 450 and cci 550 primers and the CCI 400 pierced and cratered before the 550 and the 450 looked fine and dandy.

    I do not condone doing it.
     
  4. kwaynem

    kwaynem Sharpshooter

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    95 grain Hornady SST
     
  5. kwaynem

    kwaynem Sharpshooter

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    There was only.003 difference in the base of the casing from the factory fired round
     
  6. dennishoddy

    dennishoddy Sharpshooter

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    What I saw was when approaching maximum loads, the center round was normal looking. The other two are flattened with no rounded edges.
    There is a reason that reloading manuals list what brass they are using in load development. Brass does make a difference and this is an example of it.
    It's always recommended to sort brass and use the same brand when building a new load.
     
  7. Okie4570

    Okie4570 Moderator Staff Member

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    I still weigh and sort my brass of the same brand even.
     
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  8. lasher

    lasher Sharpshooter

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    agreed, i'd back that load off 1gr and load up a ladder in .3gr increments, choose the one that shoots best
     
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  9. Okie4570

    Okie4570 Moderator Staff Member

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    You'd be amazed at the difference between max loads in reloading books from 40 years ago vs current manuals if the same manufacturer, using the same powder and bullet.
     
  10. kwaynem

    kwaynem Sharpshooter

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    Max load in the hornady book is 40.8 I know several other guys that said the 43.0 works great for them so I figured I would try it I’m going back to the original load I had
     
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