6.5 LA build

Discussion in 'Big Stuff -- 6.5mm, 7mm, 30 Cal' started by wildchild, Sep 24, 2018.

  1. wildchild

    wildchild Silver $$ Contributor

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    Building a long action in 308 bf and deciding on the case to do it. Wanna run 147-150 weight bullets around 2950-3000 and not have a issue with aol. Kinda leaning towards a 6.5 swed for a base wildcat. I think the 6.5-284 is out as it leaves me short on round capacity in mags.
    Let the opinions and thoughts loose!
    Thanks
     
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  2. cjames

    cjames

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    A couple of my buddy's are running 6.5-280 AI's. All have shot lights out.
     
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  3. Beeman

    Beeman

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    For top end performance on a long action standard bolt face look into the 6.5 SHERMAN. Similar to a GIBBS but with a longer neck. Top end loads out of mine gets a 140 Berger going 3339 fps out of a 28" Hart using N570. Parent case is a 270 Win. Brass prep is a bit of work but it is very efficient and accurate.
     
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  4. rardoin

    rardoin Silver $$ Contributor

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    A 6.5 x55 AI can do what you are asking with the right powder. I can push a 150 SMK at 2940-50fps without compressing the load or pressure signs with ReLoder 23 (Bob Jourdan AI variant) with Lapua brass. I have yet to lose a case from primers pockets opening up with too many cycles to track on some lots of brass (at least 20 firings if not closer to 30 on some). If pushing over 3000fps the pockets will open some in a firing but I have only aimed for the mid 2900's area and any 3000fps + loads were a single event on any particular case. I would presume case life to get a bit short in that higher territory. Accurate barrel life on Bartleins is at least 1500rds with 142's but I have not run more than about 600 150's in two barrels so I can't attest to the life with these heavier pills.
     
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  5. SBS

    SBS Gold $$ Contributor

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    6.5-06 will do it and the Ackley version does it easier with less stretch and FL sizing.
     
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  6. Clancy

    Clancy Silver $$ Contributor

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    That’s weird... my 6.5 Sherman was a short mag. Are there two?
     
  7. Ringostar

    Ringostar

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    Yes. Sherman is long standard bolt face. Sherman Short is a short magnum.
     
  8. Rum Punch Colonial

    Rum Punch Colonial

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    6.5 Creedmoor - 6.5 Swede Wildcat.
     
  9. wildchild

    wildchild Silver $$ Contributor

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    So that would be the 6.5 bjAI?
     
  10. bigngreen

    bigngreen

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    The 6.5 Sherman is about as good as it gets on a long action standard bolt face.
     
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  11. Rum Punch Colonial

    Rum Punch Colonial

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    That Sherman is really a Magnum. I hear tell the Barrels actually catch fire when the Bullets go off!
     
  12. rardoin

    rardoin Silver $$ Contributor

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    Correct
     
  13. Beeman

    Beeman

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    Clancy. I believe Rich first developed the LA Sherman's. Now has a Couple different SA with head stamped brass. I've had my Sherman for 5 years now and really have not shot it much in the last 3 years. Maybe time to bring it out and try some 147 ELD-M.
     
  14. jr600yd

    jr600yd Gold $$ Contributor

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    +1 for the 6.5/06 or the AI version. It will do everything you want.
     
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  15. Willie

    Willie Silver $$ Contributor

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    LUV my 6.5 Sherman. 3,180 with 140s and 3100 with 150s in 26" 1:8 Bart. I backed off some, to get 10-12 firings on brass. It's not much different than the 6.5-280 AI, both are excellent rounds for standard bolt face, long actions. Whidden makes dies for the Sherman.
     
  16. mr.big

    mr.big

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    my smith is getting a 6.5-06 reamer in that I cant wait to try.
     
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  17. Rum Punch Colonial

    Rum Punch Colonial

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    Last edited: Oct 7, 2018
  18. rardoin

    rardoin Silver $$ Contributor

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    Not quite......body taper, body length, base diameter, shoulder diameter all different on a Creedmoor vs the 6.5 x55 BJAI. I shoot 6.5 and 6 Creedmoor in addition to the BJAI.
     
    Last edited: Oct 6, 2018

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