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which caliber ar 15

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  #1  
Unread 11-26-2012, 06:27 PM
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which caliber ar 15

So hear is the deal been looking at an ar 10 in 243. But found a steal on a 15. So question, what would be the closest thing to a 243 I could get barreled in an ar15 lower. Thanks
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  •   #2  
    Unread 11-26-2012, 09:17 PM
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    Re: which caliber ar 15

    Quote:
    Originally Posted by snox801 View Post
    So hear is the deal been looking at an ar 10 in 243. But found a steal on a 15. So question, what would be the closest thing to a 243 I could get barreled in an ar15 lower. Thanks
    .243 wssm, .25 wssm, 6.5 Grendel or 6.8 spc. But why stop there 30 wssm, .300 whisper, .50 Beowulf. Not being a smart alec but there are so many chices for different distances, hunts etc....
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      #3  
    Unread 11-26-2012, 09:21 PM
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    Re: which caliber ar 15

    If distance is your thing go with the 6.5 Grendel (obviously my personal favorite) but 6.8 spc ll is good out to 400 yards and is actually better within 100 yards, but after 100 yards the Grendel dominates out past 1000 yards. But if you go with the AR 10 Type platform go with the .308, its a much better round and has lots more ammo to pick from.
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      #4  
    Unread 11-27-2012, 01:42 AM
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    Re: which caliber ar 15

    6x45 perhaps? It will still be a 243 bullet and is everything a 223 wants to be.
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      #5  
    Unread 11-27-2012, 11:30 AM
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    Re: which caliber ar 15

    If you want something close to a .243, then the 243WSSM is your best bet (in a 6mm bullet)
    The 6mmARTurbo40Imp is very close. but still nearly 150-250 fps slower than the WSSM
    The .243 WSSM and the 25 WSSM are your two best bets for long range. (and I do not mean inside 1000yds) You may be restricted to bullets that have a max of about 105gr but that tends to not be a problem for people looking to hunt with it.

    I've seen guys shoot the 105 Amax with excelent results at an OAL of 2.26...but I've gotten best results by modifying my Pmags and shooting with an OAL of 2.375.

    I was shooting 105 Amax at around 3165 before I pulled the barrel for a faster twist. Still waiting for it to show up.
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      #6  
    Unread 11-28-2012, 03:51 PM
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    Re: which caliber ar 15

    Hey thanks guys. I should mention it will be a shorter range 300 yards tops gun for hunting. Any thoughts on the 25wssm, I already have 110 accubonds for my weatherby what do you think.
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      #7  
    Unread 11-28-2012, 07:14 PM
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    Re: which caliber ar 15

    I had a m70 in 25wssm. I sold it due to poor accuracy but velocity figures were quite impressive, on par with the 2506.
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