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.308 Ackley Improved???

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  #1  
Unread 09-26-2004, 12:36 AM
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Join Date: Aug 2004
Location: Darwin Aust
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.308 Ackley Improved???

Does anyone know anything about this chamber? I don't think Ackley ever 'improved' the 308 but I have seen the 'AI' tag given to it. As far as I can tell, it is just the .308 with a 40deg taper and a straighter body. Anyone know??

I need to recut the chamber in my 308 and thought why not the AI over standard?
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  •   #2  
    Unread 09-26-2004, 08:16 PM
     
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    Re: .308 Ackley Improved???

    Being that the 308 is already a very effecient case I don't believe that you would be gaining much velocity at all maybe a little longer case life between trimmings but I personaly don't feel that it would be worth fire forming the cases.

    since you'll have to pull the barrel anyway just have it set back and rechambered , maybe with a tight match reamer
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      #3  
    Unread 09-26-2004, 09:17 PM
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    Location: Darwin Aust
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    Re: .308 Ackley Improved???

    Thanks for the help, I thought as much. I checked it out and it only changes the shoulder and straightens the walls a fraction. 50fps velocity gain, longer case life though.. Since i'm already getting 10+ loads from norma cases now, it's not worth it at all!
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      #4  
    Unread 09-28-2004, 08:10 PM
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    Location: utah
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    Re: .308 Ackley Improved???

    tunofun,
    There is a gentleman by the name of Bruce
    Artus in Pueblo Colorado that claim's with
    this cartridge he can hit a gong at 4000 Yds.
    maybe there is something to it. (riiiight)
    B
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      #5  
    Unread 09-29-2004, 08:16 AM
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    Join Date: Aug 2004
    Location: Darwin Aust
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    Re: .308 Ackley Improved???

    Yes, I have seen Bruce's exploits with the improved .308 cartridge, unreal stuff. I believe mid range trajectory to 3000yards is like 440ft above the line of sight! He better not be shooting near any flight paths!
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      #6  
    Unread 09-29-2004, 08:19 AM
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    Join Date: Aug 2004
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    Re: .308 Ackley Improved???

    Here is a link to the company he works for/owns (I think!). Harbor Engineering
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