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  • fishythepete

    April 2, 2021 at 6:12 am

    Where did you get load data? Seems a bit on the high side and OAL is going to have a big impact on pressure.

    Does look like your primer may be flowing around your firing pin a bit which can be a pressure sign but reading primers is harder with pistol just because pressures are much lower than rifles.

    ETA: OP originally stated they used HP-38 not CFE.

  • AUrugby

    April 2, 2021 at 6:12 am

    Considering max load is 4.4 grains, I’d ask where the hell you got your load data from?

    Do you have a reloading manual? Start there.


    April 2, 2021 at 6:12 am

    That is way over max load.

    I would not use HP-38 in 9mm personally, it is too fast.

  • 101stjetmech

    April 2, 2021 at 6:12 am

    Primer condition still indicates normal, moderate pressure, in line with what I’d expect since your only .2 grains above starting load.


    April 2, 2021 at 6:12 am

    The Hodgdon site shows that 4.9 to 5.5 grains may be used. Your load should be safe.

    The primer does not show anything remarkable.

  • DonBosman

    April 2, 2021 at 6:12 am

    Primers are the last thing to check. A sloppy or slightly out of round firing pin can make for interesting primers. Too long or too short a firing pin can cause issues. Loose firing pins can cause issues. Wonky firing pin spring can cause issues.

    Case head expansion is the much better indicator. Combined with erratic velocity readings you can nail the cause to high pressure. For rifles, sticky bolt lift is a great sign of high pressures. Sticky extraction is another. All are more indicative than primer “signs’ that could easily be breech face issues.

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