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Thread: 300 RUM / 190gr Sierra Tipped MK's

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  1. 05-04-2017, 07:01 AM #3
    fgw_in_fla
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    Yeah, RL-22 and 25 have been ok for my 300WM's.

    Using the Dean "Pack 'Em Tight" Scope Eye method of reloading heavy magnums I find the slowest powder possible and run them hot has been giving me incredible results.

    I'm thinking the 300RUM is similar to the 338 Edge but with the smaller diameter bullet I'm thinking the dynamics change a bit.
    I like to burn them in with that new IMR 7977 powder. Clean burning stuff.
    About 15 rounds loaded from Lyman's lowest charge to near max.

    Deano got me started on loading heavy magnums with very slow powders and compressed charges. Shortly after I had to re-mortgage the house to afford more powder but hey, it's all in good fun....


    edit- site finally let me correct my boo-boo...
    Last edited by fgw_in_fla; 05-04-2017 at 07:08 AM. Reason: funble fingers on keyboard.
    'Scuse me while I whip this out...!
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