300WM - N160 or N165? - Fed 210 or 215?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Brown Dog, Oct 29, 2003.

  1. Brown Dog

    Brown Dog Writers Guild

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    My new rifle arrives in 2 weeks time. It'll be my first 300WM.
    I'm trying to work out which powder and primers to get for it.
    Having had good experience with N140 in my 308, brand loyalty leads me to consider N160 or N165.
    Anyone have a view?

    In the same vein; I have read of individuals experiencing quite large velocity SDs when using magnum primers.
    Anyone recommend Fed 210 (rather than 215) in the 300 WM?
     
  2. Headhunter

    Headhunter Member

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    Brown Dog,

    I recommend H1000 and Federal 215 Match Primers. They work well for me with heavy bullets in the .300.

    Headhunter
     
  3. sakofan

    sakofan Well-Known Member

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    I like the IMR 4831 in my 300 Winnie. Especially when combined with 175gr. SMK's
    LETHAL!!

    RL22 is also a great powder with the .300WM..sakofan..Be glad to share some loads if you name the bullet..
    I always use the Fed 215M's...I just do.

    [ 10-29-2003: Message edited by: sakofan ]
     
  4. Guest

    Guest Guest

    Brown Dog,

    V V N-165 is a very flexible and worthwhile powder for the 300 WM. It is best when used with the heavier bullets. I had to buy the 8lb. carboy when I started using it for reloading 22-6mm AI, 6mm AI, 25-06 AI, 280 AI and the 300 WM.

    Bullet Powder Starting Load Maximum Load
    Weight Type Mfg. C.O.L. Type Weight Velocity Weight Velocity
    [grs] [in.] [grs] [fps] [grs] [fps]

    180 Partition Nosler 3.339
    N160 65.2 2596 72.5 2867
    N165 70.8 2626 77.6 2898

    185 Forex LAPUA 3.307
    N560 63.7 2546 72.7 2927
    N165 64.0 2530 75.8 2959
    N170 69.5 2497 80.6 2877

    190 HPBT Sierra 3.339
    N560 66.4 2688 74.6 2929
    N165 68.8 2663 76.6 2876
    N170 67.3 2572 77.3 2808

    200 HPBT Sierra 3.339
    N160 61.6 2482 69.8 2720
    N560 60.3 2511 70.1 2774
    N165 63.4 2503 73.1 2753
    N170 61.7 2420 73.8 2694

    220 HPBT Sierra 3.339
    N560 51.8 2261 62.8 2543
    N165 49.6 2165 64.2 2503
    N170 55.7 2239 65.6 2496
     
  5. Mysticplayer

    Mysticplayer Writers Guild

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    The n160 has a burn rate between 4350 and 4831 so may be a little fast for heavier bullets. The N165 is a very slow powder, around Re 25/Retumbo/H870 so could be a good choice for heavier bullets.

    H4831SC and H1000 are excellent choices too.

    the only way to know about primers is to try them. If the 210M work, great. If you are getting any hangfires, unburnt powder, erratic ignition, then go with a CCI BR2 or Fed 215M. The win mag is not that big of a case and if the Viht powders ignite easily, you shouldn't need a magnum primer.

    Jerry
     
  6. GRainwater

    GRainwater Member

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    I have only used F215 and the S.D. has been low. RL22 works well for me with 180gr bullets. Similar burning rates should also work well. The closest VV would be N560 with N160 being a little faster and N-165 a little slower. Practically you should not see much difference since the burning rates are so close. The best website for determining burning rates is http://stevespages.com/table3.html.
     
  7. Brown Dog

    Brown Dog Writers Guild

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    Crispin,
    Seeing the whole quote in 13th Century French makes you realise why it's rather paraphrased for T-shirts!
     
  8. Vern Harrison

    Vern Harrison Well-Known Member

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    I've been winning a few relays with my new 300 WM load as follows:

    Lapua cases
    Berger 210 vlds
    H-4831 start about 69 gr
    WinLR primer

    210m's in my barrel didn't work all I got was big round 8" five shot groups at 1000 yds.

    Switching to WinLR primers I don't have 1/2" of vertical.

    Best of luck, with your new rifle, Vern