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Started By
Message
re: New Military 6.8mm Ballistics
Posted on 1/25/21 at 1:36 pm to GardenDistrictTiger
Posted on 1/25/21 at 1:36 pm to GardenDistrictTiger
quote:No one is carrying a 12 pound rifle and 7 mags of 308 to war.
Ar10
1
Posted on 1/25/21 at 1:37 pm to upgrayedd
Yes I know. It doesn’t change the fact that there is a need for a heavier projectile at the squad level. The problem comes in with trying to create a whole new weapon system. Instead of just procuring something like the LWRC 6.8 DI A5.
Posted on 1/25/21 at 1:50 pm to upgrayedd
I imagine NATO commonality is far less important post-Cold War. If we were to get into a shooting war with the Russians or Chinese then I would rather have something that hits harder and further out than what they issue to their cannon fodder. The intermediate cartridge doctrine was developed when iron sights and short engagement ranges were the rule. When most infantry battles were determined by who fired the most rounds and known hit probabilities at the time, it made a lot of sense. Now that rifles are issued with optics and the range can be over 500 yds again, hit probability is way up so fewer, harder hitting bullets should be doctrine.
Posted on 1/25/21 at 3:32 pm to SneakyWaff1es
quote:
No one is carrying a 12 pound rifle and 7 mags of 308 to war
LOL what? 7.25 lbs empty less than 9 loaded.
How much do you think the new rifle weighs?
This post was edited on 1/25/21 at 3:55 pm
Posted on 2/2/21 at 11:12 am to GardenDistrictTiger
Was announced a little bit ago that the new cartridge is the 6.8x51. I’ll look for an article.
Link to Sig
Link to Sig
This post was edited on 2/2/21 at 11:13 am
Posted on 2/2/21 at 11:23 am to bbvdd
Is that hotter than the 6.8 SPC?
Posted on 2/2/21 at 11:43 am to 257WBY
at 51mm i would sure hope so 
Posted on 2/2/21 at 12:20 pm to 257WBY
quote:
Is that hotter than the 6.8 SPC?
6.8spc is a 6.8x43
this one is the same length as the .308 or 7.62 nato
Posted on 2/2/21 at 12:54 pm to SportTiger1
quote:
51mm
And 80ksi chamber pressure
Seems like the result of "lets write a really stupid PTS, nobody will bite on this" and when they do you're stuck with some drastically overcomplicated barrel roasting $5 per round blaster.
I get why they did it but shite, please be at least a tiny bit reasonable with my money.
Posted on 2/2/21 at 1:36 pm to DownshiftAndFloorIt
Might as well used the 6.5 creedmore
Posted on 2/2/21 at 1:37 pm to bayoudude
Why not just adopt the 6.5 Grendel?
Posted on 2/2/21 at 1:40 pm to LSUlefty
The Grendel makes most sense IMO
Posted on 2/2/21 at 1:42 pm to bayoudude
I dont understand why they didn't. They went full retard with this thing. I'm sure it'll work great but you don't HAVE to spend the absolute maximum amount of money possible on everything.
With all these contracts Sig has been getting i wonder if they end up going down the colt path
With all these contracts Sig has been getting i wonder if they end up going down the colt path
Posted on 2/2/21 at 1:44 pm to bbvdd
6.8 x 51? Might as well have used the 7mm-08.
Posted on 2/2/21 at 1:48 pm to DownshiftAndFloorIt
quote:
80ksi
That's got to be what...3100-3200fps?
Posted on 2/2/21 at 2:05 pm to SportTiger1
Here is more info on the cartridge.
Also known as the .277 fury
Guns America Article
6.5cm, .277 fury, .308
Also known as the .277 fury
Guns America Article
quote:
Why .277 or 6.8?
As many of you know, traditionally the best bullets are not found in .277 caliber. While a few good ones exist, most of the favorite bullets on the market are .260 caliber (6.5), .284 caliber (7mm) or .308 caliber. So why did SIG choose .277 (6.8mm)?
The answer is they didn’t. The U.S. military wants a new belt-fed machine gun and put out a contract for one. SIG entered a belt-fed machine gun hoping to win the contract. The military specified the caliber of 6.8 or .277. Of course, the military wants the cartridge lighter and more powerful so SIG began developing the .277 Fury for that contract. SIG has been selected as one of the three finalists for the contract and will be going into full production with the .277 SIG Fury for the military. The commercial market gets to reap the benefits of over two years of R&D with the cartridge for the military.
quote:
140 Grains, 3,000 FPS, 16? Barrel
quote:
What’s Different About This Case?
The .277 SIG Fury is a three-piece cartridge. The brass part of the case encompasses the body, shoulder, and neck. The base or head of the case is stainless steel and is where most of the pressure happens. The third piece mechanically bonds the stainless base and brass body together inside the case. SIG says, “We see this as the technology of the future.”
6.5cm, .277 fury, .308
Posted on 2/2/21 at 3:33 pm to bbvdd
quote:
The military specified the caliber of 6.8
Imagine that.
Colonel - "Hey what caliber do we want? Got a pile of .284 and .264 short action stuff to pick from that'll do around 3000 fps"
General - "needs to be .277 and doing at least 3000fps"
Colonel - "there's nothing in production that meets these specs"
General - "we got 500 gazillion taxpayer dollars to spend on this i dont give a shite it needs to be .277"
Sig Sauer - "boy have we got a badass deal for you"
This post was edited on 2/2/21 at 3:34 pm
Posted on 2/2/21 at 6:08 pm to bbvdd
Welp, forget reloading that brass....
Posted on 2/2/21 at 6:41 pm to bbvdd
quote:
. The base or head of the case is stainless steel
Looks like something some redneck created in their garage.
Posted on 2/2/21 at 6:52 pm to Clames
quote:
forget reloading that brass/stainless
FIFY
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