300 WSM 1:12 twist load recommendation

Discussion in 'Big Stuff -- 6.5mm, 7mm, 30 Cal' started by farmer44, Oct 5, 2017.

  1. farmer44

    farmer44 Silver $$ Contributor

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    Trying to find an accurate load for my 1:12 twist 30" 1.250 barrel. Just about exhausted every combination for the 168 smk's. and need an accurate load for say 500 yards. Any input is appreciated.
     
  2. Kurz

    Kurz

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    farmer44,

    PSSST, you didn't hear this from me so I'll whisper it. Listen carefully. ;)

    Get rid of the 168 SMK.

    Switch to either the 175 Bergers or the 155.5 Bergers. Re-16 is proving to be a good powder as is Norma URP.
     
  3. 4xforfun

    4xforfun Gold $$ Contributor

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    I shoot the Berger 200 grain hybrid out of my
    1 - 12 twist 300 WSM and h4350 with the 210 M primer. This is one of my most accurate thousand-yard benchrest loads.
     
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  4. mikegaiz

    mikegaiz Stay frosty, my friend. Silver $$ Contributor

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    Try any 185 Berger, H4350. NO Mag primer. I like CCI BR-2.
     
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  5. Cody Richardson

    Cody Richardson Silver $$ Contributor

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    I just started messing with the 200.20x in my WSM, mine is a 10' twist though but they still should stabilize. Still haven't got them to shoot inside the 230's though. I'm using BR2's and 4831sc
     
  6. farmer44

    farmer44 Silver $$ Contributor

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    I have ordered a variety of different bullets so I will have lots of testing in the future. Still open to any formulas and thanks for all the feedback.
     
  7. Ac guy

    Ac guy

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    I use Winchester brass, 210m primer, 63.5 grains of h414, 168 grain CT, chrono was 2975, 24 inch barrel. Hunting rifle.
     
  8. Zero333

    Zero333 Gold $$ Contributor

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    H-4831 / H-4831sc has never failed me to print small groups. Velocity is not the highest but I don't care, cause the groups are small.
     
  9. snowpro440

    snowpro440 Silver $$ Contributor

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    175gr to 210 berger or sierra's
     
  10. SWRichmond

    SWRichmond

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  11. mikegaiz

    mikegaiz Stay frosty, my friend. Silver $$ Contributor

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    No matter what the tabled say 1-12 will not spin 200 and up fast enough. 185 and below is about all that will work with a 1-12 for long range stability.
     
  12. 4xforfun

    4xforfun Gold $$ Contributor

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    LOL
     
  13. farmer44

    farmer44 Silver $$ Contributor

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    Hmm seems like a few different opinions as far as bullet weight!
     
  14. mikegaiz

    mikegaiz Stay frosty, my friend. Silver $$ Contributor

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    I have a lot of experience with shooting 300 WSM in 1000 yd. competition. When you ask for advice, I think you are going to get opinions. Not a lot of facts to prove other than your experiences, which is really opinion (as in it works for me). The hard part is in judging who is right and who is not. If you don't have a proven record and that is known. Who knows, who knows what, what is good, and what is bad. But somehow it (comments) kinds of turns into a "Oh Yea, well" and off we go........well then again I could be wrong.
     
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  15. dkhunt14

    dkhunt14

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    H4350 is pretty much the powder of choice for 1000 yard BR. Almost everybody is using it. I would stay 190 or under with that 12 twist. Like Mike says he has a Lot of experience with this case. I also shot it a Lot. Matt
     
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  16. farmer44

    farmer44 Silver $$ Contributor

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    I located 8 lbs of H-380 that I never knew I had. Im going to try that with some 155 gr bullets just for the heck of it. Who knows it may work.
     

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