tight neck chambering

Discussion in 'The Basics, Starting Out' started by marlow 243, Feb 2, 2004.

  1. marlow 243

    marlow 243 Well-Known Member

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    I would like to know the difference between the 309 &315 in chambering thanks
     
  2. DANTEC

    DANTEC Well-Known Member

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    caliber please needed but the neck diameter is the main improvement you can get in chambering most chambering with redesign throat shoot better and tighter base body help too .

    good shooting

    DAN TEC
     
  3. marlow 243

    marlow 243 Well-Known Member

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    htanks dan i was wanting to buy a 308 barrel new fluted stainless shilen but the man said it was 309 that i may have a problem with fact. ammo could you exspiain thanks
     
  4. DANTEC

    DANTEC Well-Known Member

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    309 ? for 308 cal regular neck is 0.344
    match neck is 0.342 , minimum neck without neck turning is 0.340 ( commercial match ammo ) under 0.340 that neck turning 0.338 is nice to get clean neck

    309 is a tight neck in 7 mm use for pure BR shooting , regular neck are in the 0.318to 0.320

    better is to check with your dealer

    good shooting

    DAN TEC
     
  5. jb1000br

    jb1000br Well-Known Member

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    The only 309 reference i can think of is either .309 bore instead of .308 or chambered in the 309 JDJ round??

    more info needed!!

    JB
     
  6. DANTEC

    DANTEC Well-Known Member

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    308 barrel are 300 bore 308 groove some long range barrel are tight 298/3075 but that very specail barrel

    use oversize barrel as 309 make loosy accuracy

    good shooting

    DAN TEC
     
  7. marlow 243

    marlow 243 Well-Known Member

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    THANKS FOR THE HELP I THINK I WILL SPEND THE EXTRA MONEY AND GO WITH TAC-ORD OR SOMBODYTHAT YOUAL CAN RECOMEND THANKS AGAIN FOR THE HELP