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Thread: subsonic ammo for 308 win.

  1. #1

    subsonic ammo for 308 win.

    Just a quick query, is there a subsonic load produced / been reloaded for 308/7.62 which still has the legal energy to be used on deer, ie roe/ munty etc? Living in a country where moderators are still illegal (Germany) there is not much call for subsonic ammo. However i'm due to return to the UK , where hopefully I will get my change of use for my certificate , and a variation for a moderator.
    Cheers for any help in advance.

  2. #2
    Distinguished Member tartinjock's Avatar
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  3. #3
    Sub-sonic and deer legal. Not a chance. The bullet would have to weigh about 650 grains to make deer legal at 1080fps.
    You can't say muntjac without saying, Mmmmmm.

  4. #4
    Quote Originally Posted by Harry mac View Post
    Sub-sonic and deer legal. Not a chance. The bullet would have to weigh about 650 grains to make deer legal at 1080fps.

    Now that i would love to see

  5. #5
    Some years ago, before screw-on moderators became commonplace, Lewis Walker built us a fully moderated, (complete barrel length), .308 on a Mauser 98 action for use when culling in 'sensitive' locations. The thing weighed a ton so was only really an option from a highseat or hide but was nevertheless very effective even with the usually loaded rounds running at around 2700fps with 150gr BTs - the actual report was somewhere around a .32acp pistol level. I had a look at reducing the rounds to subsonic but realised, as pointed out by Harry mac, that there wasn't a hope in hell of keeping them deer legal.

  6. #6
    Steve Bowers has built a couple of .308s like this. The one I've heard fired was very effective. The photos are on the Specialist Rifle Services website.

  7. #7
    Thanks for the replies, didn't realise the bullet would have to be so heavy, then againg i'm no ballistician.

  8. #8
    Bruce potts built a .338 br to shoot 250gr bullets subsonic and made it deer legal.I think the formula is velocityxvelocityxbullet weight divied by 450240 i think this will give you the ftlbs
    sean

  9. #9
    Quote Originally Posted by sean View Post
    Bruce potts built a .338 br to shoot 250gr bullets subsonic and made it deer legal.I think the formula is velocityxvelocityxbullet weight divied by 450240 i think this will give you the ftlbs
    sean
    Not with 250grn bullets he didn't. Makes no difference if it's a 308, a 338, a 177 or a 22.
    You can't say muntjac without saying, Mmmmmm.

  10. #10
    A .308 of any weight at under 1100fps would be subsonic surely?

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