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AXMC 338LM Questions

jonthomps

Gunny Sergeant
Full Member
Minuteman
  • Feb 9, 2009
    2,596
    385
    Kansas City
    I just bought a 338 AXMC. I'm begining to reload for it and have a couple of question for those of you who own one. It has a 27" Win Tactical barrel. I'm getting a COAL of 3.050" BTO on Berger 300 OTM's and 3.045" BTO on Hornady 285's.

    First: Does AI use the same reamer/freebore on all of their 338 barrels?
    Second: If they do use the same reamer, does anyone have a couple of go-to accuracy loads? I've got H1000, Retumbo, RL26, RL33, and N570.

    Thanks
     
    They have a standard. You sure you measured it correctly and aren't jamming into the lands? Your BTO seems a tad long.

    Here is what I run in that particular barrel (disclaimer: duplicate at your own risk).

    Bullet: Hornady 285g AMAX
    Brass: Lapua
    Primer: CCI 250
    Powder: H1000 - 90g
    OAL: 3.77"
    BTO: 2.971"
    MV: 2764 fps
    Temp: 93F
     
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    ^^^ Thanks for the load data - exactly what I was looking for. I thought they most likely had a standard reamer. Maybe I did measure incorrectly. I'll double check this evening.
     
    Just got back from the range. Thanks again for the load data. It hammers in my rifle! 5-shots @ 102y. Time to take it out to distance.
     

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