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77 grain .223 a passable enough replacement?

This is a discussion on 77 grain .223 a passable enough replacement? within the M16 AR15 forums, part of the Rifle Forum category; Could a 77 grain .223 in a 1:7 twist 20" heavy barrel be a passable replacement for a .308? Say a "poor man's .308". Basically ...


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Old April 6th, 2011, 10:54 AM   #1
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77 grain .223 a passable enough replacement?

Could a 77 grain .223 in a 1:7 twist 20" heavy barrel be a passable replacement for a .308? Say a "poor man's .308".

Basically is the 77 grain match .223 ammo good enough?

I have both, but I've always been leery of a round that is illegal to hunt deer with. But the AR platform is so plentiful, so cheap, so expandable, that it really seems to be the winner.

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Old April 6th, 2011, 11:13 AM   #2
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6.8 spc would be a better match

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Old April 6th, 2011, 11:19 AM   #3
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Put your rounds in the kill box and it don't mater what size they are....

JMHO...

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Old April 6th, 2011, 11:40 AM   #4
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I wouldn't want to get shot with either!

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Old April 6th, 2011, 12:05 PM   #5
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Actually for Urban Defense at ranges 300 yards and under, you will have better results with 55 gr Ballistic Tip ammo such as Federal or Winchester. They make a good varmint ammo choice also.

For deer hunting, where legal, if you must use a 223 try some Federal 62gr Tactical with the Trophy Bonded Bearclaw bullet, or a Barnes X bullet, or the Nosler Partition.

The Federal Tactical or the Barnes make good barrier blind choices as well.

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Old April 6th, 2011, 12:07 PM   #6
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Originally Posted by Gman56 View Post
6.8 spc would be a better match
I would just add that if you go with a 6.8, make sure it has a Spec II chamber.

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Old April 6th, 2011, 12:41 PM   #7
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Thanks for the advice. I'm trying to simplify my weapons down to commonly available ammo, as few models as possible, and as much parts sharing as possible. I rarely even deer hunt with the .308 any more, and mostly use shotguns.

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Old April 6th, 2011, 12:53 PM   #8
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Black hills 77gr. has had great success in the Sandbox as a sniper's secondary weapon in the urban enviorment they are currently operating in.

Some of the accounts I have read had shown 1 shot kills at 300+ yards.

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Old April 6th, 2011, 04:18 PM   #9
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If your considering the 6.8spc I would encourage you to look into the 6.5 Grendel as well. I am told that the intent of the Grendel was to replicate the 6.5 swede in an AR platform. All my friends that have them are VERY pleased with them.

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Old April 6th, 2011, 04:30 PM   #10
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Put your rounds in the kill box and it don't mater what size they are....

JMHO...
The heck it don't matter. If it didn't matter there would be no such thing as a 460 Weatherby, no such thing as 416 Rigby, no such thing as 375 H&H, no such thing as 30-06. Bigger is better.

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Old April 6th, 2011, 05:13 PM   #11
 
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The heck it don't matter. If it didn't matter there would be no such thing as a 460 Weatherby, no such thing as 416 Rigby, no such thing as 375 H&H, no such thing as 30-06. Bigger is better.
There is an old saying: "A .22 to the head will kill you deader than a .44 to the foot."

With that said . . . I agree with you 110%. I don't care what someone said a long time ago.

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Old April 6th, 2011, 05:43 PM   #12
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What ever you feel comfortable with and are proficient with. I prefer .308 but, I have a Stag #6 that loves 69g. Sierras.

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Old April 6th, 2011, 06:14 PM   #13
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Put your rounds in the kill box and it don't mater what size they are....

JMHO...
Another cop buddy and I talk about this quite a bit. Up to a point, yes. But it's how fast they go, and what they can still do while they're bleeding out that matters.

The mope that attacked the Detroit precinct had a solid 8 seconds from the time he was hit in the chest 'till the time he collapsed. He had at least 2 officers in his sights (but for some reason didn't pull the trigger).

No easy answer, but I tend to go with bigger is better whenever possible

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Old April 6th, 2011, 10:15 PM   #14
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Yup this could easily go into wound channels, hydro-shock and all that...

at the end of the day there is no universally perfect round for all situations just as there is no universally perfect weapon for all situations

that is why I will always view the AR vs. M14 arguments or any subsidiary caliber arguments as non-sequiturs

Context and application are the arbiters of a given weapon's viability

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Old April 7th, 2011, 10:07 AM   #15
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I've put together a load using the 70gr. Barnes TSX in a Colt HBAR 1:7. That is my 5.56 "hunting" load. It goes through full caliber expansion and penetrates 14" of tightly packed wet newspaper (IIRC), more than enough to punch through even a big whitetail.

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