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Thread: 257 ai...

  1. #1

    257 ai...

    stumbled across this.
    looks like a cracking cartridge/caliber combo
    6.5mm so it gets all the BC nuts moist..
    unusual so you can get one up on your mates

    85gr at 3400fps
    100gr at 3200fps
    120gr at 2900fps

    http://www.nosler.com/257-roberts-ackley-improved

    what's not to like?

  2. #2
    got some sh dies here
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  3. #3
    good old bob.

    believe it or not, just building one as we speak on an old nazi k98. not AI though, just standard .257

  4. #4
    Quote Originally Posted by bewsher500 View Post
    stumbled across this.
    looks like a cracking cartridge/caliber combo
    6.5mm so it gets all the BC nuts moist..
    unusual so you can get one up on your mates

    85gr at 3400fps
    100gr at 3200fps
    120gr at 2900fps

    http://www.nosler.com/257-roberts-ackley-improved

    what's not to like?
    Had a rifle in this calibre .for 7years I used to shoot 115 gr Berger @ 3000fts
    And accuracy was really good .
    used to shoot it out to 500 with no problem at all.
    they do not burn out barrels either.wear is very good.
    really good all round cartridge.

  5. #5
    Quote Originally Posted by 1967spud View Post
    got some sh dies here

    AI ones?

  6. #6
    yep
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  7. #7
    Quote Originally Posted by bewsher500 View Post
    stumbled across this.
    looks like a cracking cartridge/caliber combo
    6.5mm so it gets all the BC nuts moist......
    No, it's 1/4 inch unfortunately. Regards JCS

  8. #8
    Quote Originally Posted by jcampbellsmith View Post
    No, it's 1/4 inch unfortunately. Regards JCS
    Low bc and no a-max!

  9. #9
    Not suggesting it's not a worthwhile chambering but this figures pretty much replicate a bog standard 25-06....

  10. #10
    .257 is a quarter bore, by no means the BC of a 6.5, but not designed to be. can give hydrostatic shock out to around 150yds ish on small to medium game. probably not a good choice for sika or reds or longer shots in general unless you plan to break bone to initiate expansion.

    1:9 is ok for 120g'ers but they have a reduced MV so probably a 100g standard bullet is the 'go to' in a 1:10 barrel.

    very little that a .243 can't do, except of course, the bob is a connoiseurs gun, the .243 is a common streetwalker.

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