300wsm

Discussion in 'Reloading' started by dcb, Feb 1, 2006.

  1. dcb

    dcb Well-Known Member

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    any experience with this for a 1000yrd.
    better or worse than a 300wm
    Thanks
     
  2. BountyHunter

    BountyHunter Writers Guild

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    I have been competing with the 300 WSM for 4 yrs. Top 1k rd. I like the 1-11 twist for 190-210s. However, sierra is saying that 1-11 or 1-12 will be better for their new 210s, so I would call them.

    I am shooting a Broughton 1-12 with 187 Bibs (flatbase match bullet) at around 3000 fps.

    BH
     

  3. dcb

    dcb Well-Known Member

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    what powder and primer do you use?
    load oal.
    Thanks Dave
     
  4. D.P.

    D.P. Well-Known Member

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    I can't say better or worse than the 300 Win. I think that has more to do with how it is built. I can say my 12.5 # 300 WSM is the most accurate hunting rifle I have at 1K. Like Bounty Hunter mine is a Broughton 11 twist. I shoot 175 SMK's at 3050fps
     
  5. Ballistic64

    Ballistic64 Well-Known Member

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    BH and rimfire,just wondering how far you guys are seating these bullets? Are they just in the neck or protruding below it?
    Reason I ask is Im having a 300 saum done and having it chambered so a 180 gr accubond is right at the bottom of the neck.Am I headed in the right direction for this short case?
     
  6. D.P.

    D.P. Well-Known Member

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    B64
    Depends, most BR shooters seat way out. Mine was chambered as a hunting rifle Min SAAMI Spec. shorter throat for 175SMKS. Loaded 10thou off the lands I can just fit in a HS Mag. 190's use up some powder space.
    I know the wsm with an AB seated that way wont fit my mag.
    What is your OAL loaded Cartridge? what action? and is it a repeater?
     
  7. Ballistic64

    Ballistic64 Well-Known Member

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    Rimfire,the gun is a sendero and the oal of the cartridge is 3".Itll be used as a single shot,as the mag on the sendero wont even come close to accepting this length of loaded round.I made the 180 gr seat depth kind of a happy medium so that 168s will still seat in the neck a little over half way.
     
  8. BountyHunter

    BountyHunter Writers Guild

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    Primer is F210 and RWS. Powder is Norma MRP

    AOL- who knows, never measure oal as these are single shot.

    I seat by ogive to lands, that is accurate and measurable. That depends on the bullet as to where also. I was shooting 210 JLKs and they liked about .025 in the lands. Now I am using 187 BIBs and my LG likes .015 (some shoot the BIBs about .015 off the lands) in and my HG just had a new barrel put on and I pick up tomorrow. Both are broughton 1-12 twists with special throats just for the BIBs. However, think the 210s will work with this throat.

    Bibs have a pressure ring and are FB bullets. Have to seat the pressure ring in the neck.

    BH