280 AI Load Data Please

Discussion in 'Reloading' started by stanley52, Jul 30, 2013.

  1. stanley52

    stanley52 Well-Known Member

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    Having a 280 AI built by score high. Blueprinted 700, Bartlein 26" M24 5r 1:9, Manner MCS T4A. Berger doesn't have 280 AI data yet and I was hoping I could get some people's favorite loads. I plan on using: CCI #200 primers, H4831SC, and 168gr Berger VLD's, so if you have a favorite 280 AI load or have some recommendations to make, please share!
     
  2. MudRunner2005

    MudRunner2005 Well-Known Member

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    Those gun specs will be pretty close to mine, when it's all said & done.

    I have been researching Bartlein barrels, and Brux, and about the only blanks I can find are Douglas Air-Gauged #7 contour, and a Bartlein M24 5R blank.

    Since the Bartlein is a 5R rifling and a 1:9, I will most likely go with that blank.

    I am interested to see the load data as well.

    Except for mine I will be using IMR 7828 SSC, and Fed 210 primers, behind the Berger 168 VLDs.
     

  3. varmintH8R

    varmintH8R Well-Known Member

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    I am running 57.0 grains of H4831SC behind Berger 168's. This is a near-max load from data I have seen, so work up with care. I have no pressure signs and could likely go higher but accuracy is great so I'm not messing with it.
     
  4. Tnwhip

    Tnwhip Well-Known Member

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    I could never get the speed I wanted with the accuracty with H4831sc. I ended up getting a good load with H 1000. I shoot the 162 A-max with 63.5 of H 1000 in my 280 ACK..I have Douglas barrel with 1-9 twist. Remember start low and work up.
     
    Last edited: Jul 30, 2013
  5. varmintH8R

    varmintH8R Well-Known Member

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    Here are some groups with 160 NABs. The Bergers shoot just as good...
     

    Attached Files:

  6. kaseyfied

    kaseyfied Well-Known Member

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    I ha e been using 59 g h1000 with a 210m primer.. no pressure signs at all and I am getting .3 at 200 yards.. .10-.20 off the lands with 168g bergers!!

    kasey
     
  7. MudRunner2005

    MudRunner2005 Well-Known Member

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    That's good that H1000 seems to be working pretty well, I have a good bit of it sitting around for my magnums...

    But still, I would love to find a load for IMR 7828 SSC, if anyone has a good one for the 160 NAB's and 168 Berger VLD's.
     
  8. stanley52

    stanley52 Well-Known Member

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    Yes it's nice there seems to be a couple viable powders. Looks like I'm gonna have to pick up some H1000, unfortunately this just complicated the load tuning process.
     
  9. kaseyfied

    kaseyfied Well-Known Member

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    7828 would be a good one as well its rite between 4831 and h1000 on the burn chart.. should get very good results with that...
     
  10. TOM H

    TOM H Well-Known Member

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    Nosler has start load of 57.5gr/IMR-7828 @ 2856fps max of 61.5gr/IMR-7828 @ 3043fps with 160gr AB for the 280AI. I started 56.5gr/IMR-7828ssc @ 2828fps and worked up to 58.5gr/IMR-7828ssc @ 3038fps using Fed 210M primers and was good accurate load in my 280AI. I've got some Berger 168gr VLD but just haven't had time to work any loads up.

    IMR-7828ssc is my back up load using R-17.

    Well good luck
     
  11. Chalky47

    Chalky47 Member

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    I am working up a load for my .280 A.I. using IMR 4831 and CCI BR-2. Will let you know how this turns out. I do not have a chronograph but I will show my results with load data.
     
  12. freebird63

    freebird63 Well-Known Member

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    I have tried Retumbo, H1000, IMR4350, H4831SC and IMR7828SSC. It looks like I am going to stay with H4831SC with 160gr accubonds.