22-250 Ackley Improved - 1:9 twist - 30"

Discussion in 'Reloading' started by jes10x1, Jun 23, 2007.

  1. jes10x1

    jes10x1 Member

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    Jun 21, 2007
    22-250 Ackley Improved - 1:9 twist - 30\"

    I've ordered the above barrel for my Savage mod 12. My goal is to have a rifle for:
    1. long range competition to 1000 yds and
    2. longer range varmit work..

    My thought is to start with one bullet that should work for both - that being the 75 A-max which has worked well for 600yd in my AR.

    I've estimated the max velocity between 3300 and 3500 fps, so the rotational speed should be ok for the bullet - given my barrel maker does a good job on the rifling.

    Given the greater case capacity, I'm hoping to use a bit slower powders to fully utilize the 30" barrel (which also gives me more sight radius for my iron site work).

    Does anyone have any experience loading this caliber/bullet wt combination they are willing to share?
    JS
     
  2. trappst

    trappst Member

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    Jun 22, 2007
    Re: 22-250 Ackley Improved - 1:9 twist - 30\"

    I'm shooting a Douglas 26" 1:8 twist on a Savage 12. I've been working with the 80g Amax and R-22.

    Your suspected velocities are realistic, but accuracy may not be attainable. I've had the 80's over 3300 but they don't shoot worth a hoot.

    I have rounds loaded to test running them a little slower....around 3100 or so.
     

  3. jes10x1

    jes10x1 Member

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    Jun 21, 2007
    Re: 22-250 Ackley Improved - 1:9 twist - 30\"

    Thanks for that information. I am hoping to get a bit more velocity - with accuracy. Accuracy always has the nod. My goal for target work is to be able to shoot along with or close to a 6.5x284 - 140 gr out to 1000 yds.

    From the ballistics tables, it appears that with the 75 A-max, 3200 FPS is nearly identical in wind drift, which is the key for target work - as long as the accuracy is there.

    Regarding powder. My thought it to start with what I have AA4350, H4831 for the slower burning and Varget or perhaps RL-15 for the faster. Any thoughts?
     
  4. ol mike

    ol mike Well-Known Member

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    Aug 21, 2005
    Re: 22-250 Ackley Improved - 1:9 twist - 30\"

    Reed Mosser has a lot of expierence w/ big 22's maybe you could pm him...