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Re: 6.8mm to Replace Some 5.56 and 7.62 [Re: CT8] #4894581 10/12/18 10:10 AM
Joined: Jan 2012
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hatt Offline
Joined: Jan 2012
Posts: 5,403
Originally Posted by CT8
ractice Thr cop swat teams around here use 308 shot through bolt or AR type rifles. I guess they shoot what is given to them. I'll talk to them at the range.

Police sharpshooting isn't a demanding ballistic application. The 308 is perfectly fine. When you get towards 4 digit range it starts to fall behind.

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Re: 6.8mm to Replace Some 5.56 and 7.62 [Re: user52165] #4894902 10/12/18 05:11 PM
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NateDN10 Offline
Joined: Jan 2010
Posts: 1,745
Now I don't know exactly what the army is looking for, but I can't help but think that the .224 Valkyrie, or something along those lines, would be a better choice than something as large as a 6.8.
It could be loaded on the light side with the existing M855A1 bullets for a relatively small increase in the amount of weight a soldier would have to carry, or with high BC 90 grain bullet for performance out to 1000 yards.
Now I'm not saying they should just adopt .224 Valkyrie, I'm just saying if they really want a new cartridge that seems like a better compromise than something as large as a 6.8mm.

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Re: 6.8mm to Replace Some 5.56 and 7.62 [Re: user52165] #4894965 10/12/18 06:35 PM
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wdn Offline
Joined: Aug 2018
Posts: 414
Every rifle round is a compromise. But they just issued Marines a new M4 replacement rifle, based on the HK416. Still 5.56, and they cost $3,000 each. Doesn’t sound like 5.56 is going away any time soon if they just contracted a brand new rifle in the caliber.

Re: 6.8mm to Replace Some 5.56 and 7.62 [Re: user52165] #4895115 10/12/18 09:08 PM
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AMC Offline
Joined: Oct 2010
Posts: 954
I much prefer the 6.5 Grendel but this seems to be a step in the right direction either way. The Grendel is the ultimate compromise round for a combat rifle IMO. Better accuracy and trajectory than both 5.56 and 7.62, with only a slight increase in felt recoil, standard 30 round 5.56 sized mags hold 25 rounds of Grendel (only losing 5 rounds and much easier to keep count), the stopping power at short and long range is excellent and the cost of the ammunition is very reasonable. For civilian shooters, Wolf makes a 6.5 Grendel load for about the same price as a box of 5.56. About the only downside I could think of is that the Grendel really needs at least a 16 inch barrel and if it is going to be used for longer range shooting, 20 inches or longer is a must.

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Re: 6.8mm to Replace Some 5.56 and 7.62 [Re: user52165] #4896428 10/14/18 05:10 PM
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umungus1122 Offline
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Posts: 1,205
The 6.8 round that is being considered/ developed is a plastic cased telescoped round. It is way out(10+) years, probably more, IF it ever comes to fruition. Most likely the program will be scrapped at some point at the waste of many millions of $s. Conventional metal cased rounds will be with us for quite a while yet.

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