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16 hours ago, 4EA said:

ive been kicking around the idea for awhile, actually more tempted by 6.8 although a little apprehensive about getting into another caliber, because that means il have to buy at least 5000 rounds of it too.  you know what i really want to do is get something belt fed.  i was eyeing the DSA arms RPD, however ive heard they discontinued production, and the ones left are likely unreliable.  so maybe il end up turning one of the stripped lowers into a dedicated lower for a fightlite MCR belt fed upper.  id really like an FN M249 SAW but dont have a spare $8000.00

I don't see much benefit with 6.8 and it seems like people are kinda going away from it. to many differences from .223 with not enough benefits, if you ask me.

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On 11/18/2018 at 5:06 PM, sketch said:

hope they are labeled other. check your regs..

nice cache.

yes, they are stamped other.   

On 11/19/2018 at 7:12 AM, ARTrooper said:

I don't see much benefit with 6.8 and it seems like people are kinda going away from it. to many differences from .223 with not enough benefits, if you ask me.

of all the niche calibers that a standard AR-15 can be chambered in 6.8 seems mildly interesting, but realistically i think its unnecessary.  it seems to make more sense to just keep everything 5.56.  if i want to shoot a different caliber i can just shoot one of my other non AR-15 type rifles.

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On 11/19/2018 at 7:12 AM, ARTrooper said:

I don't see much benefit with 6.8 and it seems like people are kinda going away from it. to many differences from .223 with not enough benefits, if you ask me.

Supposedly the military is talking about switching to a 6.8 round in the future.

https://www.fbo.gov/index.php?s=opportunity&mode=form&id=0954032272b6d0e198b5263ac57e848e&tab=core&tabmode=list&=

 

 

https://www.military.com/kitup/2018/10/08/army-chief-offers-new-details-68mm-next-gen-squad-weapons.html

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That should boost its popularity and availability. I am still more of a 5.56 fan for my ARs.

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8 Oct 2018
Military.com | By Matthew Cox

The U.S. Army's chief of staff said Monday that its 6.8mm, next-generation weapons, slated to replace the M249 squad automatic weapon and the M4A1 carbine, will be able to penetrate any body armor on the battlefield.

"It will fire at speeds that far exceed the velocity of bullets today, and it will penetrate any existing or known ... body armor that's out there," Gen. Mark Milley told Military.com at the 2018 Association of the United States Army's Annual Meeting and Exposition. "What I have seen so far from the engineers and the folks that put these things together, this is entirely technologically possible. ... It's a very good weapon."

 

Ok, lets look at this for a bit.

1. will be able to penetrate any existing or known body armor: well that isn't likely since our boys wear lvl IV. and even without looking around much, ar500's lvl IV has a rating of multi-hit protection against .30 caliber armor piercing (AP) bullets (U.S. Military designation M2 AP) with a specified mass of 10.8g (166gr) and a velocity of 2880 ft/s (+/- 30 ft/s), that's a 30-06 Springfield armor piercing round. so even with armor penetrators, you would need the bullets to be traveling at a very high velocity. 

2. speeds that far exceed the velocity of bullets today: ok, so they are going to design a new caliber probably, but still it is going to be hard to push a 6.8 bullet faster than what is already out there. not to mention it isn't like the military likes long barrels because they need to be more tactical. So what's going to need to happen to get that velocity and for it to be fast enough to penetrate any body armor, they are gonna need a bigger case or some advancement not known to the regular gun community. bigger case means less ammo capacity per mag and generally more overall weight for our troops. I think they would be hard pressed to beat most top armors out there with a 6.8mm penetrator in a .308 case. so right there they would have to jump to a whole larger frame of weapon, and that's if that size of round can beat it in the first place. 

I think all these articles are just food for the media and bullsh1t to my ears. 

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2 hours ago, ARTrooper said:
8 Oct 2018
Military.com | By Matthew Cox

The U.S. Army's chief of staff said Monday that its 6.8mm, next-generation weapons, slated to replace the M249 squad automatic weapon and the M4A1 carbine, will be able to penetrate any body armor on the battlefield.

"It will fire at speeds that far exceed the velocity of bullets today, and it will penetrate any existing or known ... body armor that's out there," Gen. Mark Milley told Military.com at the 2018 Association of the United States Army's Annual Meeting and Exposition. "What I have seen so far from the engineers and the folks that put these things together, this is entirely technologically possible. ... It's a very good weapon."

 

Ok, lets look at this for a bit.

1. will be able to penetrate any existing or known body armor: well that isn't likely since our boys wear lvl IV. and even without looking around much, ar500's lvl IV has a rating of multi-hit protection against .30 caliber armor piercing (AP) bullets (U.S. Military designation M2 AP) with a specified mass of 10.8g (166gr) and a velocity of 2880 ft/s (+/- 30 ft/s), that's a 30-06 Springfield armor piercing round. so even with armor penetrators, you would need the bullets to be traveling at a very high velocity. 

2. speeds that far exceed the velocity of bullets today: ok, so they are going to design a new caliber probably, but still it is going to be hard to push a 6.8 bullet faster than what is already out there. not to mention it isn't like the military likes long barrels because they need to be more tactical. So what's going to need to happen to get that velocity and for it to be fast enough to penetrate any body armor, they are gonna need a bigger case or some advancement not known to the regular gun community. bigger case means less ammo capacity per mag and generally more overall weight for our troops. I think they would be hard pressed to beat most top armors out there with a 6.8mm penetrator in a .308 case. so right there they would have to jump to a whole larger frame of weapon, and that's if that size of round can beat it in the first place. 

I think all these articles are just food for the media and bullsh1t to my ears. 

They have been saying this for yesrs lol

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4 hours ago, ARTrooper said:

I think all these articles are just food for the media and bullsh1t to my ears. 

Exactly.  I think the guy was a talking head, and someone fucked up the information given to him.  After the move to 6.5 for the distance rifles, some desk monkey preparing talking points and briefing notes put the wrong shiit in there...  It was a GIANT move to even consider .260 Rem and 6.5 Creedmoor, let alone adopt the Creedmoor.  6.8 isn't getting into the regular inventory in the next few decades - it won't replace 5.56.  6.8 was played with before I even got out, and there were a few running around in arms rooms.

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