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Thread: long range accuracy

  1. #1

    long range accuracy

    i shoot a257roberts ai.stiler action/walther target hunter barrel.24".
    The rifle shoots.25inch at 100yds and 1.25'@300 but when i push it
    out to 400 the groupes open up to 4inchs.
    I shoot 117gr sst @3050fts velocity spread of 7to12fts.
    could it be possibe i need a bullet with higher bc to inprove group,
    or is possibly shooter errror.
    have got a leupold vxl 4x14x56 on rifle.would be grateful for any one"s thoughts.

  2. #2
    Just sounds like normal degradation of the bullet's flight to me.
    (The Unspeakable In Pursuit Of The Uneatable.) " If I can help, I will help!." Former S.A.C.S. member!

  3. #3
    do you load your own?
    There is a place on this planet for all of God's creatures, right next to my tatties and gravy!!!

  4. #4
    yes load all my own.use all the same cases and neck size .
    And only full size when cases get tight.

  5. #5
    Bob

    Have you tried any of these?

    http://www.midwayuk.com/apps/eproduc...eItemID=766265

    I like the SMK's in both the 243 and 260 and use them for practice and shooting at targets at 400m.

    Regards JCS

  6. #6
    Wind is going to be a major player in accurate shooting at 400m. Do you use flags (note the plural) and can you make calculated allowances for even 2mph changes? Sorry if these are idiot questions but they are the obvious starting point for anyone wanting to stretch the range.
    High B.C match bullets are few and far between for .25cal', but Berger make a 115g V.L.D if you can find any.

  7. #7
    Those are not `idiot questions` but facts of shooting life.
    Between 1951 and 1954 I shot at 500 yards on the Century Range at Bisley a few times for an RAF team and flags were placed at every 100 yards down the range.
    It was an education in itself to see the vagaries of wind at different distances.
    I get weary of todays `Daniel Boones` who boast of head shooting a rabbit at 600 yards even on a windy day.
    We never hear of the `cock-ups` and injured which hop off to suffer.

    HWH.

  8. #8
    Quote Originally Posted by bob257 View Post
    i shoot a257roberts ai.stiler action/walther target hunter barrel.24".
    The rifle shoots.25inch at 100yds and 1.25'@300 but when i push it
    out to 400 the groupes open up to 4inchs.
    I shoot 117gr sst @3050fts velocity spread of 7to12fts.
    could it be possibe i need a bullet with higher bc to inprove group,
    or is possibly shooter errror.
    have got a leupold vxl 4x14x56 on rifle.would be grateful for any one"s thoughts.
    I also shoot a Twenty-five Bobert and like it. I also shoot it's ballistic twin, the 25 Krag wildcat. I can't say why your groups open up, exactly, but I wonder what you shoot at that range other than paper. What is the twist of that Walther barrel??~Muir

  9. #9
    the twist rate of the barrel is 1 in 10.
    i do only shoot at paper.and and agree with stag that you dont hear about the cock up"s
    at long ranges. And dont shoot at deer at this range .Was more of a case wanting to see
    how far i could push this rifle while keeping it accurate.

  10. #10
    Not really to do with the thread but Stag 1933 stirred a memory or two. I was at Bisley in 1957 with the RAF and was equally amazed at the vagaries of the wind on the Century range. On one occasion aiming at the next target to get a shot on mine!
    As a result I now always use bubbles to test wind direction as they travel much further than talc etc:
    I seldom shoot at anything over 250 yards and am amazed that anyone can be consistent at 400 plus. It's a hell of a long way!

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