Long Distance AR

[mcbridebr]

Hi folks,

I am wanting start building a long distance shooter on the AR Platform. Im not sure if I want to go .308 or stay with .223. There are a few parameters that I am not sure about, I did a little searching and found a few helpful hints but not exactly what I am looking for.

What I am wanting the rifle to do is have the ability to be accurate at 300M +. Varmint and small game.

When it comes to .308 or .223 as a long distance shooter would you give the .308 on the AR Platform the time of day?

While looking at DD I see they have the 18" barrel but not a 20" barrel. So that got me thinking, would I really need a 20" barrel?

Is there a particular company that I need to gravitate to that might be know to have better long range options?

I would like to have it set up with a bipod, free float tube/rail. Is there anything else that I should be looking for to make the rifle more accurate (knowing that a lot of the accuracy comes from the shooter)?

As far as optics, theres so much to choose from I am not going to ask for that here but if you just have to plug one, lemme hear it!

V/r,

McBrideBr

[markm]

We've shot a 12.5" ACOG'd SBR to 700 yards.

I'd stick with an 18" White oak barreled AR15. 300M is chip shot stuff for that set up. And you'll be able to shoot a lot more since the ammo will be cheaper.

Some 69 gr and 77 gr SMKs and you'll be wearing out 300m like nothing.

[mcbridebr]

I was checking them out a little while ago. I saw this one on their site.

.223 Varmint Barrel, 18", 1-7

Then there is their SPR Match Barrel

SPR Match Barrel

[markm]

I think Pappabear has the SPR Match. If you want to do more shooting, then .223 is the way to go.

If you don't plan to shoot a lot and want more umph and higher BC bullets, then a .308 would be good.

[midSCarolina]

300-700m is not problem with a .223/5.56 AR. I have done a lot of 600 yard shooting (over the pond at the farm) with my 10.5" LMT MRP. If I were you, I would build an 18" SPR. I would typically tell you to go with JP but I have heard some negs about them lately so I am kinda shying away from them until I get more information.

Noveske would probably be a really safe bet. There barrels are outstanding and that is going to be the most important part for a long range AR.

.308 is a cool rifle and I am really kinda lusting for one but .308 is just unnecessary when it comes to varmint hunting. I use Barnes Precision 70gr 3Shock and it works great for varmint, hogs, deer, and really whatever else we have here in SC.

[mcbridebr]

300-700m is not problem with a .223/5.56 AR. I have done a lot of 600 yard shooting (over the pond at the farm) with my 10.5" LMT MRP. If I were you, I would build an 18" SPR. I would typically tell you to go with JP but I have heard some negs about them lately so I am kinda shying away from them until I get more information.

Noveske would probably be a really safe bet. There barrels are outstanding and that is going to be the most important part for a long range AR.

.308 is a cool rifle and I am really kinda lusting for one but .308 is just unnecessary when it comes to varmint hunting. I use Barnes Precision 70gr 3Shock and it works great for varmint, hogs, deer, and really whatever else we have here in SC.

I live in Big Foot country though. Had sightings here around Big Stone Gap, VA.

[clmarshall21]

Don't over look the nearly 1lb of added weight that you would end up with if you go with the WOA Varmint that you have linked above. I have a barrel with nearly the exact same specs as the SPR barrel you linked and I feel like that upper is a tank. Of course you are going to get added weight if you go with a SS SPR type barrel but adding an extra pound on top of that seems nuts to me.

FWIW I agree with the above statements regarding caliber. 5.56/.223 is cheaper and perfectly effective on small game while being able to reach out to some pretty impressive distances.

Not to mention that most .308s in the AR platform are very expensive if you buy from a reputable manufacturer. If .308 is what you NEED then so be it. If not, enjoy a 5.56/.223 rifle.

[mcbridebr]

Yeah after reading around I think I will stick with a .223. I like to shooting my weapons too much.

[eesmith4]

Frankly saying "300m+ for varmints/small game" doesn't give us much to go on. I'd feel comfortable with any of my 5.56 sticks with good ammo for 300 to 400 meters.

If by long range you mean 300-700, then an 18" 5.56 will suit you perfectly. If you want to go 1000+, then you'll need a .308.

I frankly have no interest in a 20" barrel over an 18"; the velocity difference is only 30-50 fps depending on the load, and within 700 yards the trajectory/wind drift difference only works out to a few inches. Even my OBR on order is coming in 18".

I just find the shorter barrel to be a bit handier, YMMV.

I have no problem taking someone and with 5 minutes instruction on my MK12 having them make repeatable 600 yard hits on steel. Someone that knows their stick and is a good shooter won't have any problem tightening that up and stretching it out to 7-800 yards.

The BCM MK12 is a great choice if you want a turnkey upper; supposedly the barrels are from Criterion, which is Krieger's inhouse button-rifled OEM supplier. I can't confirm that, but all the scuttlebutt keeps point to them. Even if it turned out it wasn't them specifically, I wouldn't be concerned. BCM won't put anything that isn't top notch into their gear.

[mcbridebr]

Thanks for bringing that up. I would not have a real need to go out past 700 meters.