300 Win mag load advice

Discussion in 'Reloading' started by montana_native, Oct 18, 2008.

  1. montana_native

    montana_native Well-Known Member

    Messages:
    565
    Joined:
    Oct 4, 2008
    For a 26" barrel, 1-10 twist. Anyone have a good starting load for some of the heavier bullets? 180-210 gr? I've never even fired a 300 win so I am starting from scratch here. I'm not particular about a certain bullet, but Bergers and Sierras would probably be what I will end up using.

    Thanks for any advice.
     
  2. geargrinder

    geargrinder Well-Known Member

    Messages:
    1,972
    Joined:
    Nov 6, 2006

    Definitely not a starting load, but mine likes 190g Bergers with 82g of H1000. Just flattens primers, no other pressure signs. Brass lasts about 5 loads with neck sizing only.

    It's a Savage 112 with a 26" Stainless fluted heavy varmint barrel.
     
    Last edited: Oct 18, 2008

  3. woods

    woods Well-Known Member

    Messages:
    965
    Joined:
    Jun 4, 2006
    Nosler Accubond 200 gr is in a class by itself IMO. High ballistic coefficient and excellent downrange performance. RL22 is considered by many including myself to be the powder for the 300 win mag, 72.5 gr is the max load as listed in the Nosler manual and definitely Fed215M primers.
     
  4. pjracer

    pjracer Well-Known Member

    Messages:
    179
    Joined:
    Jan 20, 2008
    RL 22 works well but I had better luck with H1000 and Retumbo with 190 and 210s
     
  5. longrange.270

    longrange.270 Well-Known Member

    Messages:
    131
    Joined:
    Aug 21, 2008
    I've been messing around with Berger 210gr VLDs, 200gr SMK's, and Hornadys 208gr. A-Max. And the SMKs have been shooting lights out in my Remmy 700. I use 64.5 grs of IMR 4350 with CCI Large Rifle Mag primers and been neck sizing the last 3 times on the brass. Sierras manual says it should be running about 2800fps +/-. I don't have a chrony or I could tell you what they are running. I have been using the same grs of powder for each bullet type. So far I have gotten 4-5 firing on this brass and the primer pockets are still tight. The SMKs are shooting great out to 735 yards. Groups at 100 yards are less the 1/2 inch.
     
  6. montana_native

    montana_native Well-Known Member

    Messages:
    565
    Joined:
    Oct 4, 2008
    I am assuming that the 220 gr SMK, would be too much for this gun. Has anyone else documented velocity with the heavy stuff? I guess I am now kind of torn on which bullet to work with and what's going to be too heavy.

    Thanks for your help.
     
    Last edited: Oct 19, 2008
  7. Nomad

    Nomad Banned

    Messages:
    366
    Joined:
    Jul 1, 2007
    Worked up a load of 200gr MKs and GKs with 76.5 of RL25
    win cases 215M shoots well out past 1400yds at Chytec training.
     
  8. stxhunter

    stxhunter Well-Known Member

    Messages:
    422
    Joined:
    Aug 15, 2006
    i shoot 79 gn h4831 180 ab fed gm brass and fed gm 215 primers good for 3106 fps cant remember sd off top of my head but it was in the low teens
     
  9. tx_shooter

    tx_shooter Member

    Messages:
    24
    Joined:
    Jan 29, 2008
    I did some work with the Sierra 240 VLDs - the results were good, but they were hard on the brass. I am now using the Hornady 208gr A-Maxes and couldn't be happier. They are a tight shooting bullet and good for target or game. I haven't tried them with Reloader 22 yet, but the results with IMR 7828SSC are pretty good. They are chronographed around 2850 fps the couple times I've been able to get them checked.
     
  10. magicofmt

    magicofmt Well-Known Member

    Messages:
    441
    Joined:
    May 9, 2005
    200 gr Accubonds and H-1000 is the recipe my 300 WM likes. 2860 ft/sec with 75 gr. Any faster, groups start to open up. Norma brass and Fed 215
     
  11. jwp475

    jwp475 Well-Known Member

    Messages:
    2,595
    Joined:
    Feb 4, 2005
    I also am a fan of H-1000
     
  12. sdeviation

    sdeviation Well-Known Member

    Messages:
    57
    Joined:
    Dec 13, 2006
    H1000 and a 180 SMK,easy on brass and fun to shoot its doing 3040 average
    for sum reason this load works best in cooler weather
    [​IMG]

    im still doing sum work with 200 grain Accubonds pics to come later
    here is the 180 accubond
    [​IMG]
    and ballistic tip
    [​IMG]
     
  13. jwp475

    jwp475 Well-Known Member

    Messages:
    2,595
    Joined:
    Feb 4, 2005
    180 grain TSX, 81 grains of H-1000 in Winchester cases and a Federal 215 primer


    [​IMG]
     
  14. chain

    chain Well-Known Member

    Messages:
    366
    Joined:
    Dec 28, 2004
    Mine will shoot 180 Noslers (Parts. or Accu) or 180 SGK's pretty tight behind 75.5 gr RL-22 and Fed 215M primers. It will shoot one hole groups with 200 Gr ( same afore mentioned boolits) with 70.5 gr RL-22. This load has shot sub 1" groups @ 300 for me, when I do what I am supposed to.