Small rifle primers in 9mm

Discussion in 'Reloading' started by Curmudgeon, Oct 13, 2019.

  1. Curmudgeon

    Curmudgeon Well-Known Member Supporting Member

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    Did an oopsie and loaded 50 rounds of 115gr 9mm using Winchester small rifle primers instead of pistol primers. What''s the collective consensus - safe to use or scrap them? I can use a Beretta 92 to shoot them if strength of firearms makes a difference.
     
  2. Wolffy

    Wolffy Make ready. Charter Member Life Member

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    Shoot em
     
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  3. bigfelipe

    bigfelipe Phil-osopher... Charter Life Member

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    This...

    Edit: unless you are loading to absolute max pressure, but even then I doubt it could create a dangerous situation. Worst case, you have a weak firing pin spring and get light strikes because of the slightly thicker cups.
     
    Last edited: Oct 13, 2019
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  4. Slacker

    Slacker Liquor and Whores...

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    Must resist....
     
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  5. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    I always like a good science experiment lol


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  6. Charlie

    Charlie Member

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    I rarely load to max, so a little hotter primer probably would not do much harm with my loads. The problem may be getting them to fire. I accidently loaded a bunch of 9mm with CCI small rifle primers a while back and did not discover my mistake until a bunch of them would not fire in several different striker-fired pistols. Your pistol is hammer fired, so it might not be a problem. I did not notice any problems with those that did actually fire. I pulled and repacked the ones left from the range session. I had switched to a different batch of loads after I discovered what the problem was and had no more issues with any of the pistols.

    If you load right up to the max, the prudent thing to do would be to pull and repack the rounds with the wrong primers.

    I bet there will be several people who write that they always use small rifle primers in their 9mm loads. That seems to be fine as long as the rounds will fire in their pistols and as long as they have worked up the load with the small rifle primers.
     
  7. Catfish

    Catfish E Pluribus Mendacium Supporting Member

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    If they were mine I'd probly shoot em. But I'd never recommend that for someone else.
     
  8. Toprudder

    Toprudder Be vewy vewy qwiet. Supporting Member

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    FWIW, I use sometimes use small rifle primers in my small primer 45acp. I always work up my loads using large primers, and in all the testing I've done, the small rifle primers (and small pistol magnum primers) always give slightly less velocity, but more velocity than regular small primers. If you are not loaded near max charges, I would think you would be safe to try them.
     
  9. BatteryOaksBilly

    BatteryOaksBilly A SHOOTER Benefactor Life Member Supporting Member

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    If I had a nickel...…………………………………..
     
  10. JohnFreeman

    JohnFreeman The bane of my existence Benefactor Charter Life Member

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    Most great inventions started with....

    "hmmm...wonder what happens if......"

    Then again, so do most accidents. :cool:

    Choot em (with a full safety squint)
     
    Last edited: Oct 22, 2019
  11. AR10ShooterinNC

    AR10ShooterinNC Happy to be here Supporting Member

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    Back in the days of primer shortages, I used Winchester small rifle primers, for all my small primer needs. I still used Win small rifle primers in my 9mm loads, makes inventory a bit easier for me.
     
  12. ncav8tor

    ncav8tor Well-Known Member Benefactor Charter Life Member

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    I use small rifle primers for my 38 Super Comp loads. Different animal but I’m with everyone else, shoot ‘em.


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  13. Coltdefender1911

    Coltdefender1911 On the couch Charter Member Supporting Member

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    What's the absolute worst that could happen? :rolleyes:
     
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  14. chrishf12

    chrishf12 Carolina Wanderer

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    Some people run SRP exclusively for competition rounds. I had a thread about trying it a while back but never did. There are a lot of experiences documented on other forums if you google a little.
     
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  15. Slacker

    Slacker Liquor and Whores...

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    It's what most 9mm major shooters use.
    Myself included.
     
  16. Charlie

    Charlie Member

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    They could fail to fire in your firearm as they did in several of mine.

    I assume that you work up and test each new combination of components, so overpressure should not be an issue any more than it would be anytime you introduced a new component. If you load to max and just substitute a different primer, you might get overpressure issues.
     
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  17. Coltdefender1911

    Coltdefender1911 On the couch Charter Member Supporting Member

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    That question was rhetorical
     
  18. Starkherz199

    Starkherz199 Professional Contrarian Charter Member Supporting Member

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    Pull those bullets...







    By shooting them.
    Done it before, you're good to go.
     
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  19. JohnFreeman

    JohnFreeman The bane of my existence Benefactor Charter Life Member

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