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Thread: Confusing pressure signs

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  1. 17-04-2022, 08:46 PM #1
    Tuckerbox
    Tuckerbox is offline
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    Confusing pressure signs

    Started OCW development today using new brass. Starting charge of 35gn 2208 showed ejector marks and tightish bolt lift. This is quite a lot lower than published loads so was confused. Persevered and did a .2gn ladder up to 37.2gn. Ejector stamps and bolt lift disappeared between 36-37gn. So how are my pressure signs going away but charge weight and velocity increasing?

    6.5x47, 130ELDM, tikka action bartlein barrel.
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