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What is the best LR option in an AR15?

 
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  #1  
Old 05-17-2012, 08:23 AM
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What is the best LR option in an AR15?

Sorry if this is one of those questions some of you get tired of seeing... All I can say is "one should never get tired of giving someone else knowledge." I'm looking for a 600 yard AR 15 for 200 to 300 lb whitetail. The .300 OSSM looks cool, I just wish there was a 6.5 or 7mm option there. Again though, I would like the advise of someone with more experience. I have 14 years of military and law enforcement, so I am not inexperienced with the AR, but these newly available calibers leave me guessing. Any help is always greatly appreciated. I know this kind of performance is easily achievable in an AR 10, but if it comes to that, I'll just stick to my bolt guns.

P.S. I like to hit a deer with about 1000 preferably 1200 ft-lbs. So I don't think the Grendel is gonna get it done. I think one of the SSM's is going to be my only option, but that's why I'm posing the question.
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Last edited by dwhunts; 05-17-2012 at 08:32 AM. Reason: add P.S.
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Old 05-17-2012, 04:44 PM
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Re: What is the best LR option in an AR15?

You're going to have a tough time getting those numbers in a AR 15 platform. The Grendel is about your best bet for long range without moving into the WSSMs (which are known for having short barrel life, feeding issues, etc). I'm a big fan of the 6.8SPC, but again, it's got nowhere near the energy you're looking for. Your best bet is to move into an AR 10, then the sky's the limit, but they're a bit heavier.
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Old 05-17-2012, 04:50 PM
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Re: What is the best LR option in an AR15?

Advanced Longerange Systems 50 bmg conversions

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Old 05-17-2012, 05:01 PM
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Re: What is the best LR option in an AR15?

Yeah, I kinda figured that. I suspected the feeding issues with the WSSM's. I thought somebody might know something I didn't.
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Old 05-17-2012, 05:08 PM
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Re: What is the best LR option in an AR15?

Quote:
Originally Posted by NomadPilot View Post
What are you trying to say? That I'm asking for too much. Story of my life.
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Old 05-17-2012, 05:09 PM
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Re: What is the best LR option in an AR15?

LMTs MWS the system comes in 243, 6.5 creedmore, 260 rem, 308 winchester and 338 federal. If you dont see a caliber you like there is a company who will make any AR barrel compatable with the MWS system. Im not sure at of right now but LMT did use Mike Rock barrels. Additional they will give a LE officer special pricing and they can be found around the net new for about 2300$

Home page

the conversion
MRP barrel conversion

Hope it hels a little
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Old 05-21-2012, 03:47 PM
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Re: What is the best LR option in an AR15?

Do you guys think the 6.5 Grendel from a 24'' barrel could get it done on a whitetail at 600 yards? What I'm coming up with is about 790 ft-lbs at 600. I think with a thin skinned match bullet like the A-max or Berger I could live with that. At 500 it'll be just under a 1000 ft-lbs. And if I'm honest, where I hunt, if a man can get within 600, most of the time he can get 100 yards closer without much difficulty. We are talking about "hunting" after all. Hell, if I want to set back at 1000 or more, I have other rifles for that. What do you think?
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