.338 Lapua help

Discussion in 'Reloading' started by B.J., Mar 29, 2009.

  1. B.J.

    B.J. Member

    Messages:
    6
    Joined:
    Jan 7, 2009
    I need to know if any of you have had any luck with IMR 7828ssc with a 250 gr sceener or 250 gr SMK. Tried H1000 with very poor results. I know h4831 sc would be better but I can not find any. The rile is a AI AW 338 w/26'' 1/10 twist.


    Also has anybody tried a test to see if there is a difference between regular primers and match. I have thousands of regular mag primers but ever since the rifle came I cant find any M primers.

    Thank you for any help.gun)
     
  2. jwp475

    jwp475 Well-Known Member

    Messages:
    2,595
    Joined:
    Feb 4, 2005
    What do you mean by very poor results?

    7828 should work as would Retumbo, R-25 as well as other powders in this burn rate, even 4831, etc.

    Judging from my experience only I'd say if H-1000 doesn't work with 250 or 300 SMKs I'd be looking at the barrel.
     

  3. B.J.

    B.J. Member

    Messages:
    6
    Joined:
    Jan 7, 2009
    Every shot through a chronograph was 50fps greater as the barrel warmed. No doubt it would group well if you wanted to wait 10 minutes between shots. I stopped at 97.5 grains with about 3000fps.the groups had a vertical spread of 1'' at 100 but with factory ammo they are 1 hole. Ive seen a lot of people complaining of the same problem with h1000 and they all switch to 4831 but I can not find any.
     
  4. jwp475

    jwp475 Well-Known Member

    Messages:
    2,595
    Joined:
    Feb 4, 2005
    Never experienced nor heard of that problem with H-1000 in fact it is probably the most used powder choice in the 338 Edge and Lapua. Not the fastest velocity choice but a very consistent powder with low SD & ES
     
  5. BHP9

    BHP9 Well-Known Member

    Messages:
    182
    Joined:
    Dec 4, 2007
    I use 92.5gr H1000 under the 250gr bullet.

    Retumbo, RL22, RL25, IMR4350 give good results out of my PGWDTI Timberwolf.

    I forgot to add that N165 was too snappy and the barrel heated faster.
     
    Last edited: Apr 3, 2009
  6. stevesmith

    stevesmith Well-Known Member

    Messages:
    48
    Joined:
    Dec 2, 2014
    i use lapua brass trimmed to 2.714 with a remington 91/2 mag primers
    91g of retumbo under a 250g smk seated at 3.600 shoots in 1 hole at 100 yards with a LE savage 110ba 338 Lm as long as i do my part..
    i found this by load testing once i found it i dont care for any other.. as long as i can find retumbo and 250g smk's i want lok for another load..it shoots better than me so i dont need to test no more..lol..when i go longer if i need to try something else i will but until then im a happy shooter:D:cool: