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File 156222159421.jpg - (75.55KB , 609x667 , image-863.jpg )
109075 No. 109075 ID: b2b3ad
http://soldiersystems.net/2019/06/19/us-army-ngsw-submission-6-8-sherwood-by-vk-integrated-systems-and-bachstein-consulting/
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>> No. 109076 ID: 9dcda2
>>109075
Nothing the Army will ever take seriously.
>> No. 109077 ID: eb9dbe
>6.8mm

When will this meme die.
>> No. 109078 ID: 48ddd0
File 156228938014.jpg - (1.89MB , 2560x1440 , Vanquish laser cannon.jpg )
109078
>>109077
When death-rays make these bullet-sprayers obsolete.
>> No. 109081 ID: b2b3ad
>>109077
Why is it always 6.8mm and not just 6mm? I thought 6mm was inherently better for ballistics. I dunno how they want to penetrate modern ceramic plates with anything that a grunt can reasonably carry tho.
>> No. 109082 ID: 9dcda2
>>109081
Bigger bullet for more mass.

https://thebiggamehuntingblog.com/6mm-creedmoor/

> consider the supersonic ranges of the three cartridges. This particular .243 Winchester load drops below the speed of sound around 1,150 yards, but the 6mm Creedmoor stays supersonic out until around 1,375 yards and the 6.5 Creedmoor doesn’t cross the sound barrier until around 1,450 yards.

6.5 CM will stay supersonic longer and is less affected by wind. But as always, everything is a compromise. 6.5 CM is a good tradeoff between velocity, bullet weight, ballistic coefficient (BC), felt recoil, and barrel life. You can drive a bullet faster with a super bottlenecked cartridge, but it will burn out barrels.

> I dunno how they want to penetrate modern ceramic plates with anything that a grunt can reasonably carry tho.

Yeah, then there's that problem. Although new types of bullets may do a better job.

https://www.israeldefense.co.il/en/node/32911
>> No. 109083 ID: b2b3ad
>>109082
>6.5 CM will stay supersonic longer and is less affected by wind. But as always, everything is a compromise. 6.5 CM is a good tradeoff between velocity, bullet weight, ballistic coefficient (BC), felt recoil, and barrel life. You can drive a bullet faster with a super bottlenecked cartridge, but it will burn out barrels.

That's still 6.5 and not 6.8 tho, why does the Army want 6.8 specifically? And why enlarge the diameter and not make the bullet longer? Would help with sectional density too.
>> No. 109084 ID: 9dcda2
>>109083
> That's still 6.5 and not 6.8 tho, why does the Army want 6.8 specifically?

That I don't know. I used 6.5 CM as an example because it's really popular and I've shot it like twice. (I'm not a PRS guy.)

> And why enlarge the diameter and not make the bullet longer? Would help with sectional density too.

6.5 CM already has really long bullets and still fits into a .308 overall length.
>> No. 109085 ID: 6affc4
>6.5 CM already has really long bullets and still fits into a .308 overall length.

Yeah, you're right, probably due to geometry.

>https://www.israeldefense.co.il/en/node/32911

What's the trick with these? Carbide core?
>> No. 109088 ID: 8e4d38
>the XR-68 houses the SmarTak electronics system, an advanced weapons system design for real-time battlespace awareness.
Sounds kind of like the dozens of fancy looking eyepro mounted HALO HUD doodads I helped the armorer do a layout on the other week.

>we want the best inovative tech out there
>Nobody knows how to use it and it's expensive
>let's throw it in a box and only bring it out to count every change of command and then probably lose the cables when putting it all away time fucking now due to some absurd time hack
Army strong
>> No. 109171 ID: eb971f
>>109076
>Nothing the Army will ever take seriously.
This. The Army is moving toward a plastic cased ammunition for their next generation of rifles and LMGs so this is already dead in the water. It also doesn't do anything better than an AR in 5.56 as long as the barrel is at least 16 inches. You only run into problems with that cartridge and bullet when the barrel is chopped off. I am so sick of tards who fuck up a perfectly good, well-engineered product then either complain that it's badly designed or try to come up with a "fix" that is anything other than undoing their bubba-fudd hackjob.


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