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Thread: Reloading for 300 Win Mag

  1. #1

    Reloading for 300 Win Mag

    New to the site but I am looking at buying a 300 win mag so any thoughts on reloading for this calibre would be appreciated.

  2. #2
    SD Regular
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    Can be reloaded in a pretty straightforward manner. N160 is a go to powder - somewhere on 72gr. Some say neck tension is critical because it is so short necked - and getting consistent OAL can be a pain. Also watch out if you're thinking of loading longer, heavier bullets for target in terms of magazine length. But not a drama.
    Nooooooooooooobody expects the Spanish Inquisition!! Our main weapon is.........

  3. #3
    RL19 or RL22 with 150-200 grain bullets

  4. #4
    Established Poster
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    I got fantastic results using 175grn bullets and N160

  5. #5

  6. #6
    I have tried:

    IMG 4831
    H4831
    N160
    N165
    H1000
    and some Remington factory powder recovered from 120 rounds of pulled ammo

    Primer - Fed Magnum Gold, CCI250 LR magnums

    using:
    150gr Nosler BT
    155gr AMax
    180gr Corelokt
    185gr Lapua Mega
    200gr Norma Oryx
    208gr AMax


    My picture left is 208gr loaded with 78gr H1000 at 94mm to tip and crimped. This is a single feed round as its too long for the mag
    very accurate, thats 5 at 130yds

    I get similar results with 69.9gr of Remington Powder and 180gr Corelokt loaded to 88mm OAL

    don't find the neck length an issue but I do notice the cartridge is much fussier across the load charge range with some powders
    with others it was genuinely hard to choose a level as they were all much of a muchness

    So what would you do? (reloading conundrum)

    300WM 208gr AMax result
    Last edited by bewsher500; 27-07-2016 at 17:13.

  7. #7
    Excellant info thank you, if by chance you manage to find a decent rifle as well let me know, I'm looking.

  8. #8

  9. #9
    Thanks Bewsher, not quite what I am looking for.

  10. #10
    SD Regular
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    Quote Originally Posted by Moppy76 View Post
    Thanks Bewsher, not quite what I am looking for.
    So what are you looking for as a rifle?
    Nooooooooooooobody expects the Spanish Inquisition!! Our main weapon is.........

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