257 weatherby

Discussion in 'Reloading' started by bigry26, Jan 1, 2014.

  1. bigry26

    bigry26 Well-Known Member

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    I am wanting to try 100 grain tsx in my rifle with h1000 but can not find any info on the combination there is a lot of guys saying they use it but not giving up their data. Barnes only lists 2 powders on their site. thanks
     
  2. Gunpoor

    Gunpoor Well-Known Member

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    The only data I could find for 100 grain bullets and H1000 is for cup/core bullets and it lists a Min charge of 73 grains and Max charge of 78 grains. I am not endorsing this data and you are free to do what you wish, but if I were doing the loading I would use it. H1000 is a very slow burning propellant ( not fickle like some faster burners) and I really don't think you would have any trouble if you start low and work up.
     

  3. jfseaman

    jfseaman Well-Known Member

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    IMHO H1000 is too slow. IMR7828 is a much better choice.

    but if that's what you have...
     
  4. Dr. Vette

    Dr. Vette Well-Known Member

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    If you e-mail Barnes' customer service they will send you a pdf with several more powders listed.
     
  5. TJAY

    TJAY Well-Known Member

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    Barnes #4 H1000

    start 70.5 Max 75.5
     
  6. Sully2

    Sully2 Well-Known Member

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    With a 100 gr Hornady my manual is showing 72.5 gr max of H1000 for 3400 FPS..??
     
  7. mrultramag

    mrultramag Well-Known Member

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    I messed around with my two 257's- a rem 700 and vanguard Submoa model. I found that 72 gr of IMR7828 and RL 22 was the best with the 100tsx at 3.19 OAL.. 22 in the 700 and 7828 in the wby. I tried H1000 it wasn't as good. Wby brass, Fed 215M, Barnes 100 TSX.
     
  8. Dosh

    Dosh Well-Known Member

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    Big, my Mark V .257 shot tightest with H1000. I tried IMR7828SSC and H4831SC but it didn't like them as well as the H1000. IMO all rifles will like something a little different and your task is to find that load. It is tougher now with the scarcity of components to try numerous loads and the end does not seem near to this condition. Just my opinion, good luck.
     
  9. bigry26

    bigry26 Well-Known Member

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    thanks for the input guys. I think I will start around 72 grains and load 1 round in 1/2 grain increments to 76 and watch for pressure signs then go from there. I will do some experimenting and post back my results thanks Ryan
     
  10. cummin_un_glued

    cummin_un_glued Well-Known Member

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    sounds like a good plan to me. i'm loading 110 NABs over 73gr of H1000 at a 3.300 COAL and getting 3450fps