338 Edge seating depth: how deep is too deep?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by buckbrush, Jun 26, 2010.

  1. buckbrush

    buckbrush Well-Known Member

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    I am having a new barrel installed on my Edge and am contemplating an Accuracy International/CDI detachable magazine setup for the "tacti-cool" look and to have 5 in the magazines. This magazine only allows a COAL of about 3.750".

    I seated both a 300 gr Berger and SMK that deep and those bullets are taking up a LOT of space in the case. My last barrel allowed 3.875" COAL.

    Will there be any issue with this? I'm not concerned if I loose some velocity. I have a 29" barrel on order so 2800 fps is all I really would like but if this is going to create a major handicap, I might just pass.

    Thanks.
     
    Last edited: Jun 26, 2010
  2. learning

    learning Well-Known Member

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    You can get a seekins that will go out to 3.94
     
  3. buckbrush

    buckbrush Well-Known Member

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    This isn't built on a Remington though or else I'd be all over that.

    Thanks.
     
  4. RDM416

    RDM416 Well-Known Member

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    When you seat a VERY long bullet like the 300 Berger that deep you are certainly reducing the case capacity jamming the bullet so far down in there. When case capacity is reduced, pressure rises. I don't know how much velocity you would be giving up over a longer seated bullet, but it would be some for sure.

    If you are not worried about the velocity loss, I can't think of anything else that would be problem.

    There are probably others who can answer "how much" better than I can. Obviously, if you have access to a 338 Edge a little experimentation would be fun and informative.....
     
  5. pitbull320

    pitbull320 Well-Known Member

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    3.750 will work just fine my edge with a 28" barrel with the bullets seeded at 3.750 with the 300 smk I get 2840 fps
     
  6. buckbrush

    buckbrush Well-Known Member

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    What powder are you using? I think I will try it. Again, I am really only after 2800 fps.

    Thanks.
     
  7. pitbull320

    pitbull320 Well-Known Member

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    buckbrush I'm using 93.gr of retumbo and fed 215's my elevation is 4800 feet and it stays very consistent at all temp ranges good luck if you have any more questions give me a shout
     
  8. whapaho

    whapaho Active Member

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    i have my edge bullets oal at 3.950 is this to far???? h1000 gets me 2777 and retumbo 2840 but i have a 30 inch tube.. maybe its to far i'm not sure just want it to shoot... i would think the bullet should be moving a little faster than this????
     
  9. jcoop

    jcoop Well-Known Member

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    My Edge was loaded at 3.75" with 91 gr retumbo in a 29" barrel and was getting 2808 fps.
     
  10. kaseyfied

    kaseyfied Well-Known Member

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    Whats wrong with 2800 fps?? Thats well over 2k range with this caliber.. i get 2715 with my lapua and have no probs killing game past 1100yrds... velocity is not everything myfriends..
     
  11. 4xforfun

    4xforfun Well-Known Member

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    My Edge reamer is almost finished. My OAL is north of 4".... closer to 4.1" with the Berger 300 OTM Hybrid. In talking with one of the top EDGE guys, I should hit near 2900 with a 1 - 10 twist tube that finishes at 30 inches.

    I hope that new fangled Edge brass hits our shore soon!!!!
     
  12. whapaho

    whapaho Active Member

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    I have a 1in 9.5 twist how much more powder are you using??? And how far off the lands is your bullet?gun)
     
  13. AZShooter

    AZShooter Well-Known Member

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    4Xforfun: what new brass are you referring to? Thanks....
     
  14. 4xforfun

    4xforfun Well-Known Member

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