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2 groove or 4 groove better?

Discussion in 'Rifle Country' started by Fatelvis, Dec 31, 2002.

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  1. Fatelvis

    Fatelvis Member

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    Is there a difference in 03-A3s, being 2 groove or 4 groove? I just bought a Rem 1943 A3 in excellent shape, and just found out it has a 2 groove bbl. Should I be depressed?
     
  2. cheygriz

    cheygriz Member

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    Conventional wisdom sez that 4 groove is not just better, but MUCH better!

    An awful lot of experts were really upset during WW2 when the 2 groove springfiled rifles shot just as well as the 4 groovers.

    And no, don't be depressed, and don't waste your money having it rebarrelled.
     
  3. Ledbetter

    Ledbetter Member

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  4. Art Eatman

    Art Eatman Administrator Staff Member

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    One of those "Ripley's Believe It Or Not" deals, but cheygriz is absolutely right! :D

    Art
     
  5. Mike Irwin

    Mike Irwin Member

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    I've got a 2 groove and it's frighteningly accurate.
     
  6. Gewehr98

    Gewehr98 Member

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    2-groove on my 1903A4...

    And I ain't EVER gonna change it for a 4-groove barrel. It shoots too darned well!:D
     
  7. Fatelvis

    Fatelvis Member

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    Ledbetter, you got me. :D You caught me asking a question on more than one sight, damn! You must be into this stuff as much as me, to catch that one!! ;)
     
  8. BADSBSNF81

    BADSBSNF81 Member

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    Doesn't matter. Either one will shoot to government specs of the time frame. Been shooting a 2 groove 03A3 of 43 vintage for almost 20 yrs. With handloads it'll do 1.5 MOA at 100m.
     
  9. Fatelvis

    Fatelvis Member

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    Bad, If you dont mind me asking: What is your load of choice, for your rifle?
     
  10. BADSBSNF81

    BADSBSNF81 Member

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    It had a preference for 180 and 220 grain bullets on top of IMR 4831. IIRC my loads were 5-10% below the max of the time (early 80's reloading books).
     
  11. Khornet

    Khornet Member

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    My 03A3

    will shoot sub-MOA at 100 yd with the original barrel. I use a Hornady 150 gr flat-base spire point bullet, CCI large rifle primer, and 4064, 50 or 51 grains. I use a seating depth gauge to put the bullet about .008" off the lands, and sort, neck-turn, primer pocket uniform, flash hole ream my brass. Interestingly, full-length sized brass shoots almost as well as neck-sized.

    I think the 2-groove barrel cleans up easier, too. I have shot groups as tight as 0.38" at 100 yd.
     
  12. fallingblock

    fallingblock Member

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    I could never discern a difference...

    between the 4-groove Remington and 2-groove Smith Corona I owned as a teenager. I'd say just shoot and enjoy:)
     
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