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Thread: Reboring by JES

  1. #1
    Boolit Master


    richhodg66's Avatar
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    Reboring by JES

    If one were to rebore a .30-06 to .35 Whelen, what would be the benefit to 3 groove verses four or five groove? He offers either, just don't now why one would be better than the other????

  2. #2
    Boolit Master GhostHawk's Avatar
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    Rich from the reading I have done there is no big difference between them.

    I suspect the 3 groove is easier to do on his end, which is why he discounts the price a little.

    In every case where I have read of someone getting a rifle rebored by JES where they choose the 3 groove they were more than satisfied with performance and accuracy afterwords. Actually more like thrilled and excited.

    I may be going that way myself one of these days. I have an Pre 64 Win 94 .30-30 with a shot out tapered barrel. Either of the options JES offers would work better by far than what I have
    Just trying to stack the dollars up is a little tough on a tight budget. I just have not wanted it badly enough yet. Soon time to get off the pot I think.

  3. #3
    Boolit Master


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    Found this;

    http://castboolits.gunloads.com/show...-4-or-5-groove

    Guess I'll call him and talk to him about it, but sounds like the three grooves shoots fine for everybody who's tried it.

  4. #4
    Boolit Master Texas by God's Avatar
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    I'm one of the 3 grooves thrilled Ghosthawk refers to. It's more accurate as a .358 than it was as a .243! I don't know or care if the 4 or 5 groove is better. Jump in guys.
    Best, Thomas.

  5. #5
    Boolit Man
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    I had a rem 700 rebored to 375 whelen. 3 groove. Will put 5 shots in an inch at 100

  6. #6
    Boolit Master
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    The less grooves the wiser the lands and the wider the lands the more metal so there fore the bore will last longer......that's the conventional wisdom

    I have 6 JES rebored rifles and ALL of them are extremely accurate. Great work, Quick turn around and good price!
    Roy B
    Massachusetts

    www.rvbprecision.com

  7. #7
    Boolit Master
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    First, go with Jesse's recommendation. Second, enjoy the results. He did my 35 Krag barrel and it is fantastic.

  8. #8
    Boolit Master
    JWFilips's Avatar
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    For the 358 Win I love the 3 Groove
    " Associate with men of good quality, if you esteem your own reputation: for it is better to be alone than in bad company. " George Washington

  9. #9
    Boolit Master Texas by God's Avatar
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    It's hard to measure a 3groove slug. Now there's a negative! Only one I can come up with though, haha.

  10. #10
    Boolit Master wrench man's Avatar
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    In the automotive world more splines are stronger than less, that's probably why I had JES put five groves in the 356 rebore he did for me.
    ASE master certified engine machinist
    Brake & Alignment specialist, ricer to class 8

  11. #11
    Boolit Master



    missionary5155's Avatar
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    As far as accuracy I find no difference between 3 or 4 or 5 groove. He seems to know what he is doing and you do not have to wait 5 months to get the work unwrapped and started. Right now is his slow time. Sent a rifled action in a couple years back in March and had it back in our hands 13 days after sending. Come June things get a week to three weeks slowed up.
    Mike in Peru
    "Come unto Me, all you who labor and are heavy burdened, and I will give you rest." Matthew 11:28
    Home built Matchlock similar to what an early 1600 Colonial soldier might have.

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BR Bench Rest M Magnum RN Round Nose
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