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Another 338 lapua question

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  #8  
Unread 05-27-2013, 01:06 PM
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Re: Another 338 lapua question

That is sweet!!! I'm 28 inches. Let u know how it comes out. Think Riley is right. My crony is off!!??
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  •   #9  
    Unread 05-27-2013, 01:06 PM
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    Re: Another 338 lapua question

    Quote:
    Originally Posted by marioq View Post
    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???

    I may be the bullet. Sometimes a rifle/barrel just doesn't like some bullets.

    Try something else like the 300 grain Match King and check your velocities.
    You Can seat them to mag length minus .030 and you should be good to go.

    At least it should tell you if it is the load the bullet or the chroney.

    J E CUSTOM
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      #10  
    Unread 05-27-2013, 01:19 PM
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    Re: Another 338 lapua question

    Quote:
    Originally Posted by J E Custom View Post
    I may be the bullet. Sometimes a rifle/barrel just doesn't like some bullets.

    Try something else like the 300 grain Match King and check your velocities.
    You Can seat them to mag length minus .030 and you should be good to go.

    At least it should tell you if it is the load the bullet or the chroney.

    J E CUSTOM

    So I also tried 250 Bergers today but stopped when I got the bad velocity. I have some 250 sierras too so I can try that. As for mag length, I think u mean max length???
    So you are talking about my OAL with the hornady OAL gauge and take .030 off that number?
    Just making sure I don't waste more time and powder!!!!

    Hahaha

    Thanks
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      #11  
    Unread 05-27-2013, 11:02 PM
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    Re: Another 338 lapua question

    Quote:
    Originally Posted by marioq View Post
    So I also tried 250 Bergers today but stopped when I got the bad velocity. I have some 250 sierras too so I can try that. As for mag length, I think u mean max length???
    So you are talking about my OAL with the hornady OAL gauge and take .030 off that number?
    Just making sure I don't waste more time and powder!!!!

    Hahaha

    Thanks
    Actually sometimes more free bore is better. If your chamber is a SAAMI spec. the cartridge OAL
    is not measured at the ogive but the tip of the bullet to the case head. Different bullets measured at the ogive will have different COAL lengths.

    Most manufacturers control the COAL and the free bore with the magazine/Mag well length.

    If you shorten the COAL to Magazine length minus .020 to .030 that will increase free bore and should increase velocity if your chrony is working right.

    Hope this helps

    J E CUSTOM
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      #12  
    Unread 05-27-2013, 11:11 PM
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    Re: Another 338 lapua question

    I will try this ASAP!!!

    Thanks a bunch!!!!
    Mario
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