Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Need help from LONG RANGE .308 gurus

Discussion in 'Rifle Country' started by shark3-1, May 4, 2007.

Thread Status:
Not open for further replies.
  1. shark3-1

    shark3-1 Member

    Joined:
    Feb 9, 2007
    Messages:
    104
    My custom .308 bolt gun is almost complete, I'm just waiting on the A5 which should be here in a month or so. The build is using a Surgeon action and a Broughton barrel.

    The problem is that I had ordered a 1-11.25" twist barrel and Broughton sent a 1-10" twist barrel. What problems will I have with this twist? What loads will it work well with and what loads will it work poorly with?

    I'm going to run a silencer on it and was thinking that it would be fun to run the subsonic rounds out of the 1-10" barrel, but the purpose of the rifle is to be able to make hits at 1,000yds. So, should I send the blank back and get the 1-11.25", or will I be able to work up a 1,000yd capable load out of the 1-10" barrel?
     
  2. Zak Smith

    Zak Smith Moderator Emeritus

    Joined:
    Dec 24, 2002
    Messages:
    9,037
    Location:
    Fort Collins, CO, USA.
    See
    http://www.6mmbr.com/308Win.html

    It sounds like you should be OK for using the 155's up to the 210's.

    My LR 308 load is a 155 Lapua Scenar at about 2850.
     
  3. shark3-1

    shark3-1 Member

    Joined:
    Feb 9, 2007
    Messages:
    104
    Thanks a bunch Zak, you were exactly who I was wanting to hear from.
     
  4. USSR

    USSR Member

    Joined:
    Jul 7, 2005
    Messages:
    8,458
    Location:
    Finger Lakes Region of NY
    shark3-1,

    You will have zero problems out to 1,000 yards with a 1-10" twist in a .308.

    Don
     
  5. Sniper4Life

    Sniper4Life Member

    Joined:
    Nov 17, 2006
    Messages:
    325
    Location:
    Peoples Republic of Virginia
    If I am trying to kill something at 1k yards, I like the heavier bullets so 1-10 is great.
     
  6. adobewalls

    adobewalls Member

    Joined:
    Apr 6, 2003
    Messages:
    280
    Location:
    Houston
    The 1-10 will also be better if you want to try subsonic loads. In that case you want to use the heaviest bullet your rifle will stabilize at 1100 to 1200 fps.
     
  7. db_tanker

    db_tanker Member

    Joined:
    Apr 22, 2005
    Messages:
    1,772
    Location:
    Willis, TX
    mine is a 1-10 and the 168 and 180 Sierra's are very nice in it.


    Bergers are the next thing to be used I think.


    of course, I am not shooting out to 1K :)


    D
     
  8. rockstar.esq

    rockstar.esq Member

    Joined:
    Dec 9, 2004
    Messages:
    1,475
    Please post pictures when you're rifle is complete!
     
  9. shark3-1

    shark3-1 Member

    Joined:
    Feb 9, 2007
    Messages:
    104
    Thanks guys, I'll be sure to post when complete. Zak, Right now I think that I'm going with the SN-3, but I got to play around with a PMII the other day and I was impressed. With cost not being an issue, which do you prefer? I haven't had the chance to check out both side by side.
     
  10. rero360

    rero360 Member

    Joined:
    Nov 15, 2005
    Messages:
    877
    Location:
    Fredonia, NY
    when did you order your stock? I ordered an A5 back in mid december and should be getting it within the next week or so, but I head back to iraq on thursday, so I probably wont be seeing it for another 6 months. other than that and possibly adding a new trigger, my build is all done. Enjoy your new rifle.
     
  11. shark3-1

    shark3-1 Member

    Joined:
    Feb 9, 2007
    Messages:
    104
    I ordered it back in the first of January. I have no clue when I will recieve it, I'll bank on another two months at least.
     
  12. Zak Smith

    Zak Smith Moderator Emeritus

    Joined:
    Dec 24, 2002
    Messages:
    9,037
    Location:
    Fort Collins, CO, USA.
    Hi,

    After shooting both the S&B and the USO scopes for a while, I sold off my USOs and went to PMIIs on all the bolt guns.

    * finer reticle lines (at least on illuminated reticles- USO says they can make super-thin non-illum reticles)

    * larger exit pupil and more eye relief help tracking target during recoil, also brighter

    * for similar scope setup, smaller size and weight

    * knobs easier to rezero
     
  13. Sniper X

    Sniper X Member

    Joined:
    Jan 3, 2007
    Messages:
    2,635
    Location:
    New Mexico
    1 in 10 is fine for the scenario you describe, you'll love it. I think 1 in 11 or 11.5 would have been a mistake....but that may be just me.
     
  14. Ranb

    Ranb Member

    Joined:
    Dec 15, 2003
    Messages:
    896
    Location:
    WA, USA
    From what I have read, a 1-10 twist will stabilize 200 grain and down, 1-8 is required for greater than 200 grain. I use 225 cast and 240 sierras in my 300 whisper. Keep in mind that past 200 yards the bullet is trajectory is steep and requires that you have a very good estimate of the range to the target to ensure a hit.

    Ranb
     
  15. Oohrah

    Oohrah Member

    Joined:
    Dec 29, 2006
    Messages:
    727
    Location:
    So. Coast Oregon
    Your kidding, right? Don't recall ever hearing of a 1 in 11.5 barrel.
    Humm, 1000 yards and beyond? Go FIFTY !!!! Think you can
    still get ammo for $5 to $6 a round, and garanteed mostly a double
    tap isn't required:D
     
  16. shark3-1

    shark3-1 Member

    Joined:
    Feb 9, 2007
    Messages:
    104
    Dick Tylock:
    Your kidding, right? Don't recall ever hearing of a 1 in 11.5 barrel.
    Humm, 1000 yards and beyond? Go FIFTY !!!! Think you can
    still get ammo for $5 to $6 a round, and garanteed mostly a double
    tap isn't required





    What?
    I just want to be able to go TO 1000yds, as my range doesn't go much further past that. I decided on the .308 because it seemed to be able to do that without breaking the bank.

    I don't have much interest in the .50 as there are other calibers that I would rather have if I'm paying $5-6 for every round out the pipe.
     
Thread Status:
Not open for further replies.

Share This Page