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308 Win, What grain for hunting deer?

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  • 05-04-2017 9:46am
    #1
    Free-2-Flow
    Registered Users Posts: 442 ✭✭


    Novice question but 308 Win, What grain for hunting deer?

    What's the difference between 90 or 155 grain? Other than that obvious speed


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    #2
    Cass
    Moderators, Sports Moderators Posts: 28,562 Mod ✭✭✭✭Cass


    150 grain is the staple for 308 and used in 1:12 twist rifles. Anything lighter and you usually need a slower twist rate, which are hard got unless it's custom. Something like 1:13 or even 1:14.

    I used to use Lapua 109 grain. They were called either trainer rounds or barrel burners. They were light and super fast. At 100 yards they were ok-ish, but after that my 1:12 was not the right twist for stablising them. Also they were hard got at the time and with them being FMJ useless for me for hunting.

    What rifle have you?
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    #3
    Free-2-Flow
    Registered Users Posts: 442 ✭✭Free-2-Flow


    Cass wrote:
    What rifle have you?


    I have a Ruger M77, I've no idea about twists haha


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    #4
    Cass
    Moderators, Sports Moderators Posts: 28,562 Mod ✭✭✭✭Cass


    Ruger Hawkeyes are, if memory serves, 1:10 twist which is odd as most manufacturers use a 1:12 as their standard.

    The 1:10 may fire 150gr good enough, but they prefer heavier rounds such as 165 to 180 gr. They even fire heavier stuff up to 200 gr. However i doubt they'll run the 109 stuff either well or at all.
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    #5
    Grizzly 45
    Registered Users Posts: 15,031 ✭✭✭✭Grizzly 45


    Th 1 in 10 seems to be a US standard for 308.

    "If you want to keep someone away from your house, Just fire the shotgun through the door."

    Vice President [and former lawyer] Joe Biden Field& Stream Magazine interview Feb 2013 "



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    #6
    Cass
    Moderators, Sports Moderators Posts: 28,562 Mod ✭✭✭✭Cass


    Yeah noticed that. Their Remington line has a lot of 1:10s in it, more so than most European models or more accurately ones sold in Europe.
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    #7
    ntipptop
    Registered Users Posts: 78 ✭✭ntipptop


    Free-2-Flow wrote: »
    I have a Ruger M77, I've no idea about twists haha

    a 168 flows nicely through them


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    #8
    ldc
    Registered Users Posts: 30 ✭ldc


    Hi,
    I have used many types and weights. My vote goes to Remington Premier Accutip 165 gn. Always works, and no runners ever with those in many years of shooting all deer species in Ireland with them.


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    #9
    philbk
    Registered Users Posts: 30 ✭philbk


    Free-2-Flow
    Registered User
    05-Apr-2017 09:46
    #1
    Novice question but 308 Win, What grain for hunting deer?

    What's the difference between 90 or 155 grain? Other than that obvious speed

    Apart from the obvious speed difference, bullet design is the most important factor in choosing the correct bullet weight. For deer hunting you need a bullet that penetrates and expands in a controlled manner. Generally light fast bullets are designed to be very frangible - i.e. Almost explosive - generally only suitable for use on pest species such as foxes. Deer hunting bullets are generally heavier, travel a bit slower, penetrate and expand predictably usually retaining much of their weight and resulting in a mushroom shape rather than disintegrating.


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