First post, and I need advice from .257wby loaders please

Discussion in 'Reloading' started by Truk505, Feb 21, 2012.

  1. Truk505

    Truk505 Member

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    I'm having a problems trying to work up a load for 100gr Barnes TTSX. I have imr 4831 and 7828 powders, and worked up a load of 68gr of imr 4831 and 100gr TSX with an oal of 3.167 that shoots 3/4" moa, and a load with 69gr of 7828 and 110gr nosler accubond set at 3.250 oal that shoots 3/8" moa. I can't seem to find a load for the TTSX that will shoot under 1-1/2" moa. I'm shooting a wby Accumark. Any help would be appreciated.

    Thanks in advance.
     

  2. Truk505

    Truk505 Member

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    Ok, does anyone have an oal that works for them using the ttsx?
     

  3. LRSickle

    LRSickle Well-Known Member

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    I would PM Long Time Long Ranger and ask him. He shoots the TTSXs in his .257 Wby. I beleive he uses Ramshot in his(?). I shoot the regular 100gr TSX in mine with 72gr RL22 at an OAL of 3.180. Hope that helps.
     
  4. Truk505

    Truk505 Member

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    I'm pretty limited on powders right now, the only powders I can't get around here at the moment is imr 4831, 7828, maybe some rl25 and a guy said he'd sell me some h1000 if I need some. I have a decent load with imr 4831 and the tsx bullets, 68gr set at 3.167 but my groups are spread out with the ttsx bullets.

    This is my what I got with 110gr accubond with 69gr of 7828 pushing it

    [​IMG]

    And this is what I have with the 100gr tsx and 68gr of imr 4831 pushing it

    [​IMG]

    My groups with the ttsx have all been in the 1-1/2" to 1-3/4" range.
     
    Last edited: Feb 24, 2012
  5. LRSickle

    LRSickle Well-Known Member

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    It looks like you're getting some vertical stringing. It's too much at 100 yards to blame on wild velocity spread so I'm suspicious of your barrel. Is your barrel floated?
     
  6. Truk505

    Truk505 Member

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    I haven't done anything to the rifle. It's an "out of the box" Accumark.
     
  7. Dr. Vette

    Dr. Vette Well-Known Member

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    That means its floated.

    I had mine apart this week and I was surprised how much front-to-back play there is when the action is just sitting in the stock. That seemingly goes away when the screws are properly tightened but you know it's got to move a bit under recoil.

    Check yours and see if it's the same. I know that it technically voids the Weatherby accuracy guarantee but I'd bed at least the recoil lug - I'll be doing it with mine.
     
  8. greggohrc

    greggohrc Well-Known Member

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    i shoot 115 NBT's in mine over RL22. My grouping looks very similar to yours. I can get the first two touching, #3 is just off and then look out. Mine is not floated though, Rem 700 LSS, and the forearm does touch. It also has a sporter barrel so it get hot fast. It may not not like 115's in yours. I tried to load out closer to lands and the accuracy got worse, I shortened them up, and it came right in there. I am pressing them to 3.160 and that works well with NBT's