finaly finished the 6.5 gibbs

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Ridge Runner, May 9, 2007.

  1. Ridge Runner

    Ridge Runner Well-Known Member

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    ok after alot of trial and error I finaly loaded my first LR hunting loads for the 6.5 gibbs. after turning the necks and reworking bullet seating many times I came up with the following
    rem cases, fed 210m primers, 61 gr of re22, and a 140 gr a-max
    mv is a surprising 3350 fps, sighted in at 300 my 500 yd drop is 3.75 MOA, at 1k its 17 moa. After 5 months of working with this thing Its finaly coming around, the man that built it did tell me pressures would drop as more rounds went downrange till it round count was approx 200 rds.
    JS
     
  2. Flybuster

    Flybuster Well-Known Member

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    That's flat shooting.
     

  3. remingtonman_25_06

    remingtonman_25_06 Well-Known Member

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    Refresh my memory, but what exactly is the Gibbs cartridge line? Whats the parent case and any altering changes?? Sounds like a very good 6.5" caliber for LR targets/deer for sure.
     
  4. Ridge Runner

    Ridge Runner Well-Known Member

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    270 win is the parent case, the shoulder is moved forewardfar enough to allow a .308 neck and sharpened to 35-40 degrees, don't know which. here's a pic of the gibbs and its parent
    [​IMG]
    JS
     
  5. Dave in Idaho

    Dave in Idaho Well-Known Member

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    JS,
    I knew it would work out. You are getting 100fps more than me with 1 full grain less RE22.
    What are the groups looking like?
    Is the brass holding up to several loadings?
    Wait till you see what it does to a deer. It is just magical.
    Congrats.
    Dave
     
  6. royinidaho

    royinidaho Writers Guild

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    I like it!!

    Good work, great patience. It sure looks like 1K plus muley cartridge and should do well on ol wapiti out there a ways also.

    Good huntin'!
     
  7. remingtonman_25_06

    remingtonman_25_06 Well-Known Member

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    So pretty much, its like a 6.5-06 AI right?? Maybe on steroids even more so??
     
  8. Flybuster

    Flybuster Well-Known Member

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    It might have a longer neck than the 6.5-06imp, using 270 brass the neck is longer.
     
  9. Ridge Runner

    Ridge Runner Well-Known Member

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    Yeah rem, the original gibbs line were all based on the 30-06 case removing most of the body taper, moving the shoulder foreward to allow one caliber of neck length. Ray had his reamer built using a 270 case length due to him building alot of 1k bench guns and the br shooters wanted the .046" longer neck of the 270, the 270 case also has a higher saami pressure rating but I'm thinking thats because of the smaller diameter bullet
    JS
     
  10. Ridge Runner

    Ridge Runner Well-Known Member

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    Dave,
    I really haven't done much bench work but from what I've saw the thing will shoot about anything, put a 3 shot group on a rock at 500 last week that was around 2", the groups that I shot that were way over pressure were sub 1/2 moa, so as time allows I'll let ya know, right now I got gobblers to hunt!
    JS
     
  11. Ridge Runner

    Ridge Runner Well-Known Member

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    Roy I hope to one day get out west to hunt, somebody's gotta show you all what poor shots us eastern guys are!
    JS