opinion wanted on caliber choice

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by tayhot, Oct 13, 2011.

  1. tayhot

    tayhot Well-Known Member

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    Intent of rifle is for big game hunting.

    Should I build a .338 Lapua or .338 RUM? I know I am splitting hair with performance, just looking for opinions.

    Thanks all
     
  2. screech

    screech Well-Known Member

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    Depends. If your doing a custom action then lapua. If 700 then rum
     

  3. bearpaw

    bearpaw Well-Known Member

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    build an Edge +P if Shawn is letting those out to the public yet. Build an Edge if its on a 700.
     
  4. tayhot

    tayhot Well-Known Member

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    gracias
     
  5. B23

    B23 Well-Known Member

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    If you're doing a custom receiver build a 338 Lapua Improved and in a pinch you can still shoot 338 Lapua.

    If you're building off a factory donor action go 338 RUM if you want to shoot store bought ammo and 338 EDGE or +P Edge if you reload.
     
  6. CRNA

    CRNA Well-Known Member

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    Not hijacking, but what is an Edge +P?
     
  7. bearpaw

    bearpaw Well-Known Member

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  8. rscott5028

    rscott5028 Well-Known Member

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  9. bearpaw

    bearpaw Well-Known Member

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    RUM doesn't "get there" like the edge or lapua IMO.
     
  10. rscott5028

    rscott5028 Well-Known Member

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    That depends entirely on where "there" is.

    I think Jack O'Connor killed everything in North America with a 270 Win.

    He just didn't attempt it at 1760 yds.

    -- richard
     
  11. LouBoyd

    LouBoyd Well-Known Member

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    Here are case capacity and case length for several popular 338 Cartridges.
    cartridge______ grains inches
    338 Federal ___57.5 2.014
    338 Win mag____ 86 2.500
    330 Dakota_____ 94 2.530
    338 Norma Mag-106 2.500
    338 Lapua Mag-108 2.724
    338 Rem Ultra_ 110 2.760
    338 Edge_____113 2.850
    338-378 Wby _- 137 2.910

    Consider seating depth of the bullets you want to shoot and the magazine length you have available with the action you choose.. I don't like any cartridge where the shank of the bullet is seated inside of the neck- shoulder junction of the case. I find that seating deeper gives inconsistent velocity and I believe it can be dangerous. Also any 338 cartridge looses 2.27 grains of usable case capacity with each 0.1" of seating depth.

    Of those I shoot 338 Federal, 338 Win Mag, 338 Norma Mag, 338 Rem Ultra and 338-378 Weatherby. Each has advantages and disadvantages. ":Best" depends on what you want to use it for.
     
  12. Long Time Long Ranger

    Long Time Long Ranger Well-Known Member

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    Why are you limiting yourself to only those two choices? You need to give some more information. Those two along with the 338-300 RUM some are calling edge here are identical in performance so take your pick. In other words either will make any shot the other two will. There is quite a bit to consider between these two so you need to talk to someone very knowledgable on the subject. There are others that significantly outperform these three velocity wise if you want to shoot longer distances. Many things you need to consider so need way more information.