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Another 338 lapua question

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  #1  
Unread 05-27-2013, 08:22 AM
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Another 338 lapua question

Hey guys. Sorry to beat a topic like a dead horse but thing dot seem right

I'm at the range now. I'm shooting 95.0-95.3 gr RL 33 with fed primers in lapua brass with 300 gr Bergers and my velocity is 2332 ftps.
I have read 2700 and change with the lapua so I'm thinking in way low on charge but its at max for the books I think. No signs of pressure. I think pull billets and go up cuz I'm wasting valuable resources. What do y'all think???
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  •   #2  
    Unread 05-27-2013, 09:56 AM
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    Re: Another 338 lapua question

    I think your chronograph is teasing you, if they shoot good then test them out at LR and check your velocity based on drops.
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      #3  
    Unread 05-27-2013, 10:05 AM
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    Re: Another 338 lapua question

    Yeah Riley, that's what I thought too but they are not shooting well. I'm at 3.675 and my lands is 3.72 or so.
    So I'm trying to get these damn Bergers to shoot for my 2 elk hunts this year.
    Any ideas from all are welcome.
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      #4  
    Unread 05-27-2013, 10:16 AM
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    Re: Another 338 lapua question

    You might want to try the seating depth test that berger came up with, i dont have a link but i know ICANHITHIMMAN has it in his signature line.
    __________________

    I'm 18
    "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
    ~George Washington

    "The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
    ~ JE Custom

    Biggest fail of 2014 so far... http://www.longrangehunting.com/foru...ea-ftf-128972/

    My guess on W3P .308 230 Grain Bullet: G1 .740-.755
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      #5  
    Unread 05-27-2013, 11:25 AM
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    Re: Another 338 lapua question

    The Alliant data shows a max of 97.5grs of RL33 with a 300gr bullet for the 338 LAPUA MAG


    CASE MIN OAL BBL PRIMER POWDER GRAINS FPS
    Lapua 3.68" 24" Fed 215 Reloder 33 97.5 2,748


    They used a SMK but the Berger has less bearing surface so if your rifle doesn't show pressure signs you might be able to go higher then 97.5grs and if you don't feed them from the magazine definitely seat them out close to the lands.
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      #6  
    Unread 05-27-2013, 11:57 AM
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    Re: Another 338 lapua question

    Wow!!!! Thanks for that info. How did u get it??

    You know I am mixed!! I've heard like .010 off the lands to .180 or so. I tried right up there but it **** bad so I backed it off. Maybe I'll try more juice and closer!!!!!
    I went off. RL 25 data as the closest I had for burn rates and backed off 10% and worked up to 95. Guess I'll start at 95.5 and go to 98 or so by 1/2 gr

    Thanks a bunch
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      #7  
    Unread 05-27-2013, 12:47 PM
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    Re: Another 338 lapua question

    I did a search just before I picked up some RL33, found the Alliant Reloading site.

    Alliant Powder - Reloader's Guide

    I can't wait to get out and try some in my 338 LM.
    It has a 30"barrel and I am getting 2800 fps using 91grs of Retumbo under the Berger 300 Hybrid.
    I am hoping to get another 50 fps with the RL33.
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