6.5 Creedmore in a AR-10 Platform Reloading

Discussion in 'Reloading' started by Hunter01, Oct 2, 2018.

  1. Hunter01

    Hunter01 Member

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    My question is this are there powders (midrange bing suggested in the Books H-4350, super performance, R-17 ect.) that should not be used in AR- 10 gas operated guns)
     
  2. Zen Archery

    Zen Archery Well-Known Member

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    If it’s in the book. It’s fine to use gas or bolt.
     
  3. jasonco

    jasonco Well-Known Member

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    You're fine using what bolts guns use, mine works fine with RL17/140NosCC.
     
  4. Hunter01

    Hunter01 Member

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    Thanks guys, just trying to be cautious
     
  5. Theotherdave

    Theotherdave Member

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    Stay away from RL17 in a gas gun. It's way too temp sensitive.

    Due to the DI system after about 3-4 rounds you will start to see a POI shift due the increase in heat in the chamber. It's so pronounced it even makes a difference how long it sits in the chamber before you fire, as the powder cooks and just keeps getting hotter until you finally ready to fire.
     
  6. Hunter01

    Hunter01 Member

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    The other Dave
    Tempature stabilization is one thing I like in my 223 service rifle loads I use Varget for that and the fact it shoots so well in my gun. I see on here and have bought H4350 supposed to be good for 6.5 is it a tempature sensitive powder? Looking at my book Varget tops out in the 6.5 before reaching the2700 I’d like to start at. Basing this on the FPS listed on the Hornadays match ammo (140grain)
     
  7. Zen Archery

    Zen Archery Well-Known Member

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    Varget is great for 85-125gr bullets
    H4350 is great for 130-160gr bullets
     
  8. Hunter01

    Hunter01 Member

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    Plan to shoot 140s right now. Just getting started with this 6.5 kick been years with 223 and 308