Accubonds distance to lands, Rule of thumb

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by buckbrush, Nov 19, 2009.

  1. buckbrush

    buckbrush Well-Known Member

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    Is there a "magic number" of seating these or at least a good place to start? I can seat very shallow and still have room in the magazine.

    7mm RM is the gun in question.

    Thanks.
     
  2. MontanaRifleman

    MontanaRifleman Well-Known Member

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    I dont think there is any rule of thumb for jacketed (non-mon0metal) bullets. I like seating them about .010 - .020 off the lands, then maybe experiment with differnt depths.

    Mark
     
    Last edited: Nov 20, 2009

  3. BountyHunter

    BountyHunter Writers Guild

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    IF you have the mag OAL, seat them into the lands about .020, If not, seat them as far out as the mag will allow and then work backwards.

    That way you only have one way to go. No point seating in the middle and then trying to figure to go up or down.

    Do not make little .005 jumps. test at .020-.040 intervals to find a spot and then fine tune.

    BH
     
  4. Moman

    Moman Well-Known Member

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    I load mine at .020 and they are extremely accurate.
     
  5. Nitroused383

    Nitroused383 Active Member

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    I thought .020-.040" from the lands was a good rule of thumb printed in several reloading manuals. I wouldn't really recommend jamming a hunting bullet into the lands. That is unless you like digging powder out of your magazine.
     
  6. Franklin

    Franklin Well-Known Member

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    That has got to be the worst piece of advice I have ever read, for obvious reasons to anybody very experienced. All I can say is WOW!
     
  7. cstilt

    cstilt Well-Known Member

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  8. MontanaRifleman

    MontanaRifleman Well-Known Member

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    Hmmm.... sounded like pretty good advice to me...
     
  9. Rimfire

    Rimfire Well-Known Member

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    +1
    The only thing I would add is from the Jam I would work smaller the from mag length 5-10 thou at a time like 10 in touching and then 10 off
     
  10. Varmint Hunter

    Varmint Hunter Well-Known Member

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    I'd start at magazine length and go from there. Oddly enough the best load in my .308 Broughton using the 165 Accubond is at .125" off the rifling, which is magazine length. Loading the bullet closer, @ the rifling, or into the rifling resulted in larger groups.

    In a hunting rifle I'd much prefer ammo that fits & feeds from the magazine. In my .308 I was lucky that this length also produced excellent accuracy.
     
  11. Franklin

    Franklin Well-Known Member

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    To each their own. I'd never tell someone to start off by seating a bullet .020 into the lands in a hunting gun.
     
  12. MontanaRifleman

    MontanaRifleman Well-Known Member

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    You're right... neither would I... I missed the "into" part of into the lands.

    But to say it's the worst piece of advise...... well, I think that's a little strong.

    The rest of the advice is good IMHO
     
  13. Moman

    Moman Well-Known Member

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    Varmint Hunter, I have a Rem 700 5R Milspec and to keep the 175 SMK's in the mag I have to seat .135 off the lands. This is max SAAMI. The gun shoots unbelievable. I never thought it would do as good as it does, go figure.
     
  14. corey006

    corey006 Well-Known Member

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    I agree....

    Jamming any hunting bullet into the lands is asking for trouble.

    What if the bullet stays in the lands and case comes out....voila...you now have a jammed bullet and action full of powder?

    Hunting rifles need to be MOA accuracy only and consistent cold barrel POI.

    Ragged one-hole group type accuracy is not needed.


    I seat my Accubonds about .020 off the lands and have not trouble getting MOA out of a stock Ruger#1. In accurized bolt gun sub MOA should be easily achievable without seating a bullet into the lands???


    IF not I am picking a different powder and/or bullet....