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Old 05-26-2013, 06:06 PM   #1
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Default Ar15 calibers???? What one shouli i build

I just ordered a ar15 lower reciever but it may be a while befor I get it beacause wating time fore state paper work but I was wondering what caliber should I build it and why?
What is sompting bigger Thain a 223 that isint a odd ball that I could make it as I want this to be a acurate gun and may want to do alittle hunting with it maby go coyote or hog but I don't want a 50bmg or anything what's your thoughts and why thanks

W

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Old 05-26-2013, 08:08 PM   #2
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mrbirdguy,

If you are planning on loading it I would highly recommend the 6.5 Grendel. Its ballistics are great even at long distance and it is a great round for prairie dogs, coyotes, Bobcat, Pigs with 95 gr. Hornady V-Maz. And has been good for me for Deer in the 120 gr. bullet range. But as accurate as it gets. With the 95 Gr vs it will turn a prairie dog inside out at 400 yards.
Of course if you want bigger and only need a good 200 yard gun the 458 SOCOM is a monster. It will shoot longer distances but not as flat as the others being 45 Cal. at longer ranges. I shoot a 325 gr. Hornady round in mine for hunting.

One of the other more common calibers that you can buy at a sporting goods retailer without too much trouble is the 6.8 SPC.

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Old 05-26-2013, 08:49 PM   #3
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What is the difference in 6.5 vs 6.8

How about cost of the rounds how avalable are they?

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Old 05-26-2013, 09:38 PM   #4
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How avalable are 6.5 reloading dies?

And bullets and reloading data

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Old 05-26-2013, 10:05 PM   #5
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300 Blackout appears to be a round that is making in-roads quickly in the AR market.

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Old 05-26-2013, 10:14 PM   #6
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What is the hunting use of 300 blackout
How avalable is ammo
And how easy is it to get reloading dies / bullets

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Old 05-26-2013, 11:10 PM   #7
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Reloading dies are available for the 6.5 Grendel, the 6.8 SPC, and the .300 Blackout. Bullets arid available for all three, the 6.5 uses the same projectiles you could use in a 6.5 Swede Mauser as long as you stuck to the lighter end if the spectrum. 6.8 basically uses .270 bullets, and the .300 uses .308 cal bullets.

.300 blackout and 6.8 SPC seem a bit more available because they opened production to other ammo manufacturers early. The 6.5 actually seems to have some of the best Ballistic potential, but the manufacturer kept the rounds as an exclusive for a long time, which may end up killing the round off.

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Old 05-26-2013, 11:46 PM   #8
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Confused

Not shure what to go with

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Old 05-27-2013, 10:19 AM   #9
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Go with the .223 first, and buy another upper later.

.223 is becoming readily available (though still a little high).

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Old 05-27-2013, 12:11 PM   #10
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I concur. Get a 5.56 first.

Then, if you want a 200 yd or less caliber with more potential, get the 300 blackout. I have pretty much ditched 5.56 for 300 although ammo is scarce. 300 Blk is a do-it-all caliber including suppressed options, short barreled/pistol options and all parts comparability with 5.56 except the barrel.

If you want punch at a long distance, the 6.5 Grendel is unmatched in the standard AR platform. 1000 yard hits are very possible along with much more energy at close ranges. I have a stripped lower begging for one of these but there are just aren't any available.

6.8 is a fail in my opinion. It hits harder than the 300 Blk and has more range but it is expensive and the 6.5 Grendel outshines it in almost all areas of performance.

The big bores are for serious medium to short range hunters.

There is my 2c! Now back to loading more 300 Blk!

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