Help with 338 Lapua Loads

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by xring01, Jan 8, 2004.

  1. xring01

    xring01 Well-Known Member

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    Sep 16, 2003
    Gents,

    I will be shooting this cartridge in the near future.

    Would appreciate any info that you have on loads.

    Will most likely start out with the 300SMK.

    Thanks in advance.
     
  2. Guest

    Guest Guest

    xring01,
    I started shooting the 338 Lapua about 4 months ago and with some advice from Chris Matthews found that 93grs of Retumbo works pretty good in my rifle with the 300 SMK, he said his likes 94grs. As always work up slowly in your rifle.
    Take care,
    Wayne
     

  3. Richard338

    Richard338 Well-Known Member

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    Aug 22, 2003
    I shoot the SMK300's with a PGW timberwolf.
    I have tried Retumbo 92-93 grains. The pressure signs are less, but you can't beat the accuracy of 92 grains of H1000.
    I get 2780-2790 fps out of it, and groups as good as 1/5 MOA at 200 yrds. Of course it works well at 1000 yrds also. This was seated against the rifling. Hope this helps.
     
  4. xring01

    xring01 Well-Known Member

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    Sep 16, 2003
    What dies and shellholders are you using?
     
  5. Guest

    Guest Guest

    I use Forster/Bonanza Benchrest dies and a RCBS #14 shellholder. For the money I think the dies are pretty good, especially the seater die.
    Wayne
     
  6. jlamb

    jlamb Well-Known Member

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    Jul 14, 2009
    I have a Remington 700P in 338LM. For some reason H4831 works better with 250 grn SMKs. I've tried Retumbo, H1000, RL25 with about a dozen loads each at different COALs. The faster H4831 is just more accurate in the rifle. I've found the 85.5 to 86.0 grains of H4831 seems to be the magic load giving me .46 MOA average.

    Right now I'm also working up a load for the Hornady 225 SST's with H4350.

    Per the shellholder I have the RCBS#14. It's a little sticky with Lapua brass - get the redding (i think it's #35). I'm switching as soon as it arrives.
     
  7. 805_Sniper

    805_Sniper Well-Known Member

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    Feb 26, 2011
    I have a McWhorter Custom .338 LM. I'm using Federal 215 primers, 92.0 gns. of N560 powder, shooting 225 grain accubonds 3300+fps. I get 2.5" groups at 800 yds consistently. Hope this helps. What kind of action are you running? I have a Stiller Predator which is very beefy. This is a pretty hot load, so make sure that your action is capable of handling such loads... Good Luck!
     
  8. Smkngstv

    Smkngstv Member

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    Mar 24, 2012
    I also have a 338 pgw Timberwolf just got it.when reloading is it better to seat the bullett against the lands or back it off,I will be loading 300 gr Berger ont tactical bullets,what powder and how much do I start with as these are new bulletts out and I cannot find any reloading data for them