Vihtavouri N540 or N550 powder

Discussion in 'Reloading' started by CWQ, Jun 9, 2013.

  1. CWQ

    CWQ New Member

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    Feb 2, 2013
    I have run out of RL 15. Should I use Vihtavouri N540 or N550 powder.

    I am shooting 175 grain Sierra Match Kings with an Accuracy International 308, 24" barrel, model AE Mk 3 with a 1:12 twist rate.

    many thanks
     
  2. Michael Eichele

    Michael Eichele Well-Known Member

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    N540 for up to 190s in some barrels, n530 in others and n550 yet in others. I'd start with 540. I've run a lot of 540 and 550 in 308s running 168s up to the 208s. 540 has been stellar in both accuracy and velocity for 168-190. 550 is better for the heavies.
     

  3. CWQ

    CWQ New Member

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    Thanks, I was leaning to 540 and you confirmed it.
     
  4. Popapi

    Popapi Well-Known Member

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    Were you using RL15 for the bullets you mentioned???