.223 or 6.8 mm?


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Old 11-27-2011, 02:25 AM   #1
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Default .223 or 6.8 mm?

Looking for ballistic info, or knockdown pwr. Pros and cons of each. Any input? Seems to me the bigger the better.

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Old 11-27-2011, 02:33 AM   #2
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The .223 is basically the 5.56x45mm round, which has had complaints about it's lack of power, but it is pretty accurate. The 6.8 Remington special is MUCH more powerful and more accurate. But the 6.8 is more hard to find and more spendy.



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Old 11-27-2011, 02:39 AM   #3
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Quote:
Originally Posted by KaiTheGunGuy View Post
The 6.8 Remington special is MUCH more powerful and more accurate.
What?

-Fred
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Old 11-27-2011, 02:43 AM   #4
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Explain...

"...rough men stand ready in the night to visit violence on those who would do us harm." /G\

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Old 11-27-2011, 06:15 PM   #5
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You can go to google and get the ballistic info that you need, if you're looking for opinions on each round I can offer you this.

It depends on what you are doing with the gun. If you plan on using it in a WROL situation either will serve you well but there are a few things to consider. one of which being that the .223 or 5.56mm round has far less recoil than a 6.8 so for rapid fire and putting a lot of lead downrange from standing or even crouching and unsupported positions you'll prefere the smaller round.

If you're shooting from supported or prone and want that extra accuracy at range, which the 6.8 provides over the .223, you'll find it to be the more capable round, however the AR-15 platform wasn't really designed around the 6.8 so you'll want to make a few mods to make it's recoil a bit less noticeable during rapid fire including adding all the neat little toys up front people knock on for weight to help with that unsupported firing.

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Old 11-27-2011, 06:43 PM   #6
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So in turn the 6.8 would be rougher to lug around in the woods...

"...rough men stand ready in the night to visit violence on those who would do us harm." /G\

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Old 11-27-2011, 07:27 PM   #7
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I will stick with my 5.56, the 6.8spc never became as popular as was thought so its harder to find and the cost is to much

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Old 11-27-2011, 08:11 PM   #8
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If you're talking about in hunting applications where it's primarily gonna be 1 shot at a time no, the 6.8 is a fine hunting round, I have one that I have been hiking with and have no concerns over it's weight compared to the 5.56. I'm going to be going hunting with it...hopefully this year, maybe not til next but even on the hikes i've taken it with me and done some target shooting the 800-1000 yard treks there and back again weren't tough at all.

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Old 11-27-2011, 08:14 PM   #9
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My brother has fooled around with a rifle in 6.8 spc. First of all it is a pretty good round, however, it is hard to find and is a bit spendy when you do so. He usually gets Hornady for factory ammo and the rest of the time he reloads. It does have better knock down energy at further distance then the 223. It is a bit more accurate than the 223 but I believe thats becuse of the slightly better wind bucking characteristicts the heavier grain weight bullets offered for the 6.8. The BC may be better but I dont know for sure.

Heres a drop chart or come up sheet for elevation only for this round. It is calculated for a temperature of 70 degrees, 29.26" Hg., 250 feet in altitude, 26% humidity, and using a Hornady factory, 110 gr. BTHP with zero @ 100 yards.

100 yards 0.00 moa
200 yrads 2.25 moa
300 yards 5.50 moa
400 yards 9.50 moa
500 yards 14.0 moa
600 yards 19.50 moa
700 yards 29.50 moa
800 yards 33.25 moa

Hope this helps in your decision.

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Old 11-27-2011, 09:00 PM   #10
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Just thinkin in terms of a "go-to" rifle. Got lots of buddies that served in Iraq and afgan. and almost all complain about not enough knock down.

"...rough men stand ready in the night to visit violence on those who would do us harm." /G\



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