280 ackley big bullet data?

Discussion in 'Long Range Hunting & Shooting' started by 338 LEGEND, Feb 13, 2010.

  1. 338 LEGEND

    338 LEGEND Well-Known Member

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    Does anyone have load data on the 280 ackley with 190gr bullets? thinking around 50.0 grains of RL-22 to start. Hoping to get around 2700 fps out of a 28" barrel.
     

  2. 4bycamper

    4bycamper Well-Known Member

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    You should get more than that. The 280 AI is about the same as the 7mm SAUM, and I have one of those. Try Ramshot Magnum to get your velocities up there. Probably can usee 7mm SAUM load data as well. Start near the middle and work your way up in 1/2 grain steps.

    Good Shooting
     

  3. elkaholic

    elkaholic Well-Known Member

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    You didn't say what bullet or barrel twist you are using, but you may have trouble stabilizing a 190 VLD in a std. .284 twist like a 91/2.......Rich
     
  4. 338 LEGEND

    338 LEGEND Well-Known Member

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    Its a 1-9 twist, shot them today. the 280 ackley had no problem stabilizing them, worked up to 53.5 gr rl-22. only had time to shoot at 100 yrds, that said the groups with 52.0 , 52.5, 53.0, 53.5 all shot oversized one hole groups. Plan to run them over the crony next time out, and a 600 yrd test.
     
  5. angus-5024

    angus-5024 Well-Known Member

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    Sweet man, sounds like you got a good one there. I'm thinkin my next rifle will be the plain jane .280rem.
     
  6. elkaholic

    elkaholic Well-Known Member

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    Sounds like you have it covered:D..Rich
     
  7. 338 LEGEND

    338 LEGEND Well-Known Member

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    Ok run them thru the crony, 2835 fps with 6fps on dev. Set up at 400yrds, Five shot group was 2". I dont think im going to change anything.
     
  8. liltank

    liltank Well-Known Member

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    Sounds like a good plan!:cool:

    Tank