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Thread: My 260AI Load Development Begins

  1. #121
    Member Tikka7mm08's Avatar
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    Yes I would think so with 129gnr's. Excellent shooting.

  2. #122
    Member Tikka7mm08's Avatar
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    Fireforming. Mixed success I guess. Worked up to 15gn AP70N plugged with cleaning cloth...which has to pushed all the way in not just tucked in the neck (in case anyone is silly like me). Not sharp shoulders but all set for full 260AI load.

    10 grains:




    15gn FF, 260, 260AI case:



    Sent from my SM-G925I using Tapatalk

  3. #123
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    I used 17grs of AS-30 nice sharp shoulders.
    What powder have you found the best so far?

  4. #124
    Member Tikka7mm08's Avatar
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    I could've gone higher may be but was worried I'd stuff the primer pocket... @7mmsaum should I go hotter?

    I am only using RE17, and have a tub of AP-70.

    Would love some more RE17 if any one has some.

  5. #125
    Member Tikka7mm08's Avatar
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    @25/08IMP AP-30 is their fastest powder so 17gn means I have room to move I suspect.

  6. #126
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    Abe tried 14 up to 18 grns when he did my barrel 18 had a slight ejector mark but 17 was fine and a 2" square patch pushed hard over powder.

    Sent from my SM-G900I using Tapatalk
    Tikka7mm08 likes this.

  7. #127
    R93
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    I use heaps more AS 30N than that.😆

    Sent from my SM-G900F using Tapatalk
    Do what ya want! Ya will anyway.

  8. #128
    Member Tikka7mm08's Avatar
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    Went to 19gn and no real improvement...very hot suppressor.

  9. #129
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    I take it off and point it into a big bag of rags.

    Sent from my SM-G900I using Tapatalk

  10. #130
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by Tikka7mm08 View Post
    Went to 19gn and no real improvement...very hot suppressor.
    Hang on a minute, you were firing forming, shooting rag through a suppressor ?

    Can you pull it apart to see how much rag is in it & how much damage you may have done to it ?

  11. #131
    MSL
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    Hahaha

  12. #132
    Member Tikka7mm08's Avatar
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    Yeah I didn't use the cloth with the suppressor...was loading and firing out of gunroom window as I went...upside of rural living... the 0.25" squares were gone before the end of the barrel but decided against chance.

  13. #133
    Member Danny's Avatar
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    A 'load' of drama - fire forming
    K95 and Tikka7mm08 like this.
    Dan M

  14. #134
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    Yes that fire forming load can go hotter to sharpen up those shoulders, and lube the outside of the neck and shoulder with Redding sizing wax, this helps the shoulder form even easier without chamber wall friction.
    Tikka7mm08 likes this.
    A big fast bullet beats a little fast bullet every time

  15. #135
    Member Mathias's Avatar
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    @Tikka7mm08 what's the latest on this front? Tried any of those 143gr ELD-X in this machine yet?

 

 

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