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Thread: .308 help needed please.

  1. #1

    .308 help needed please.

    Hi people, I have just had some major building work completed at home and in the process I have lost my reloading data, I need the OAL and COL for .308 and I am using Vhit 140 powder with sierra 150 sp's, so need powder weight, I think that I was using 42.2 grains but please correct me if I'm wrong or need to up it a bit.
    Thanks Andy.

  2. #2
    Sierra print a COAL of 2.750 and with Vit N140 a load of 39.9 to 44.7 for their 150 grain SPT and SBT bullets.

    Vihtavuori print a COL of 2.756 with a load of N140 of 42.3 to 46.8 with the SPBT Sierra bullet. With the Sierra HPBT the published COL is 2.795 with N140 between 40.8 and 45.8

    It would be worth checking these loads, I'd guess Sierra and Viht probably both publish data on their web site, in case I've made any typing errors. Needless to say you need to work up etc. etc. but hopefully this is some help.

  3. #3
    Thanks caorach, those figures look right, I'll have play now.

  4. #4
    2.8 col
    150 gn bullet
    44gn n140


    guaranteed to work in all rifles (308's)

  5. #5
    Quote Originally Posted by Offroad Gary View Post
    2.8 col
    150 gn bullet
    44gn n140


    guaranteed to work in all rifles (308's)
    By work, do you mean go Bang? or give you a 'guaranteed' 4'' or less group? I like your confidence in knowing what my rifle likes! Do you know what my girlfriend would like for her birthday, that would also be useful!

  6. #6
    Quote Originally Posted by flyingfisherman View Post
    By work, do you mean go Bang? or give you a 'guaranteed' 4'' or less group? I like your confidence in knowing what my rifle likes! Do you know what my girlfriend would like for her birthday, that would also be useful!
    i'm pretty sure i could find something that your girlfriend would like - probably take me about 20 minutes

  7. #7
    Quote Originally Posted by Offroad Gary View Post
    i'm pretty sure i could find something that your girlfriend would like - probably take me about 20 minutes
    Probably quicker than trying to find something my rifle likes! hehe

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