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Thread: Nothing wrong with old primers

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  1. 02-02-2023, 02:10 PM #1
    johnd
    johnd is offline
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    Join Date
    Jul 2012
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    Tauranga
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    Nothing wrong with old primers

    Did some load development for a new club member at our fullbore club. All that was available were some old white packet Winchester LRP's. Made for "standard or magnum loads ". Got to be 35yrs old at least, generously at $5 a sleeve. With the proviso that they might not all go bang.

    Hit the magic 3000fps with a155 grain HBC (3001fps to be precise) an extreme spread of 10 fps and standard deviation of 4 fps. Chrono was a Lab radar 5 shot group.
    A slightly higher load was

    3019 fps
    ES 14 fps
    SD 6.4 fps

    So absolutely nothing wrong with old primers.
    Micky Duck and shananah like this.
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