308win. ???

Discussion in 'Long Range Hunting & Shooting' started by j-speers, Oct 11, 2009.

  1. j-speers

    j-speers Member

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    Aug 23, 2009
    i decided to build a 308 just to play around and practice with and was wondering what all of you would recommend for barrel length and rate of twist for bullets 165gr and up
     

  2. cinch

    cinch Well-Known Member

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    If you want to shoot bullets in the 175gr range, I would get the 1:11.25. Barrel length will be more of a preference. I have seen people easily ring steel at over 1,000 yards with an 18" barrel. I have 308's in 26", 24", and 20". I take the 20" hunting a lot because it is so short and easy to handle. There doesn't seem to be any difference in accuracy between the different length barrels. A lot of this is going to depend on what you really want to do with the rifle. I think a 22" or 24" would be a good all around barrel length.
     

  3. j-speers

    j-speers Member

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    i was plannin on using it as just a practice rifle and something to shoot ground hogs an cyotes with and to shoot paper i was thinking of semibulding a sps heavy barrel or a howa action but i wasent sure about the twist rate with heavy bullets
     
  4. liltank

    liltank Well-Known Member

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    My experience has shown that you can sling up to 180grn with a 1:12. If I would have known that would be the absolute weight in bullet that I was going to shoot, I would have gone with a 1:12 in stead of a 1:10. Your pressures will be lower with heavier loads and velocities higher. Here are some of my suggestions:

    Savage Arms Hunter Series Model 11F

    Savage Arms Hunter Series Model 11FCNS

    Savage Centerfire Hunting Rifle 16FHSS

    Savage Arms 12 Series Varmint Model 12FVSS

    Savage Arms Model 10FP

    Savage Arms Law Enforcement Series Model 10FP-LE2A

    Savage Arms Model 10FP

    Savage Arms Model 12 Varminter Low Profile

    Savage Arms 12 Series Varmint Model 12BVSS

    Any of the Howa's would suffice. The only thing with the Howa's, you will have to get trigger work done for a nice crisp, light pull. The savages would be my first choice. I own a Mod 12 Low Pro. The gun is a dream to shoot.

    Tank
     
  5. Michael Eichele

    Michael Eichele Well-Known Member

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    150-155 = 14x

    165-168 = 13x

    175-180 = 12x

    190-210 = 11x

    After experimenting with many 308's and many barrels in various twists and barrel lengths I have settled on 26" for length and 11 or 11.25 for a twist. However I also prefer 168-200 grain pills in the 308 so I use the 11 or 11.25x. If I were going to stop at 180 grain bullets I would choose the 12x. It seems as if you can run top loads more accurately with the 26" than with the shorter barrels whereas shorter barrels prefer loads well under max potential even though physically there is only about 20 FPS gain or loss per inch of barrel max load for max load.
     
  6. liltank

    liltank Well-Known Member

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    I have also found that you need to run faster powders for shorter barrels. I use 135 grain pill with H335 at 2800fps. It is my deer killer for short range PA woods.

    Tank