CMO going to be searching GunBroker for the XM5 clones soon. . .

Or wait, is that only if USMC adopts. . . 

CMO going to be searching GunBroker for the XM5 clones soon. . .

Or wait, is that only if USMC adopts. . . 

Shit, wonder if lvl3+ can stop it.

Brb, gonna start new 1 year thread b4 buying.

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Brb, gonna start new 1 year thread b4 buying.

Here we go again.
New chapter…

I'm still waiting for my XM-8

I had some time to look into this.

The Spear is a beast of a rifle to carry. 8.4lbs vs. 6.5lbs M4.

Compared to a Scar 17, same same.

Mags, 20 or 25rd mags. Compared to 30rd M4/16 mags. This might be an issue as 30rds has been the universal standard.

Nam era days going from the m14 to the M16, history channel mentions GIs would carry easily way more 5.56 than the 7.62. I forgot the ballpark but it was like 500rds to 200rds.

 And they complained how the AK mags were 30rds, so they wanted 30rds also (20rd M16 mags at the time).

I foresee the same problem going from 5.56 to 6.8, especially the mags for your basic soldier. Then add in the room clearing/urban fighting with a rifle that has more recoil and bulkier.

The 6.8 SAW wouldnt be as bad of a switch. Soliders carry the m240 anyways, so just replace both the m249 and m240 with the 6.8.

I have a feeling the Spear will tank as a replacement for the M4.

The above are my civilian opinions.



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     Suppose they got the contract for replacement barrels too. 

    IIRC, 6.8 CM is a barrel burner. 
Not bad for competition but as a squad weapon of war ? 
Life span of 2k or so rounds worth,depending upon rate of fire, duration of string of fire, and velocity.   

     Suppose they got the contract for replacement barrels too. 

    IIRC, 6.8 CM is a barrel burner. 
Not bad for competition but as a squad weapon of war ? 
Life span of 2k or so rounds worth,depending upon rate of fire, duration of string of fire, and velocity.   

     Suppose they got the contract for replacement barrels too. 

    IIRC, 6.8 CM is a barrel burner. 
Not bad for competition but as a squad weapon of war ? 
Life span of 2k or so rounds worth,depending upon rate of fire, duration of string of fire, and velocity.   

If this is true for 6.8 SPC, then wow. Cash cow. But the contract was limited to a max amount, so if would be up to SIG to have to replace the barrels. And we all know how good the military procurement can be.  I mean the M17 was the cheapest of them all.  Then past lessons with the mess up of the early M16's (powder change and no cleaning required statement), M1 Garand and the issue with clips in the final testing (machine calibration was changed because some worker had the bright idea and didn't consult engineering first), SCAR for SF, etc...

Maybe future lining of the barrel, like how they chrome lined the M16's after they fixed the powder issue.

If this is true for 6.8 SPC, then wow. Cash cow. But the contract was limited to a max amount, so if would be up to SIG to have to replace the barrels. And we all know how good the military procurement can be.  I mean the M17 was the cheapest of them all.  Then past lessons with the mess up of the early M16's (powder change and no cleaning required statement), M1 Garand and the issue with clips in the final testing (machine calibration was changed because some worker had the bright idea and didn't consult engineering first), SCAR for SF, etc...

Maybe future lining of the barrel, like how they chrome lined the M16's after they fixed the powder issue.

6.8 SPC isn't that bad for barrel wear.  Many of the 6 mm and 6.5 mm variants (Creedmoor, PRC, etc) are more barrel burning, depending on how hot they are loaded, which can be quite hot for say bolt actions.  Also remember that barrel being "shot out" is relative.  Some PRS shooters have said they pull barrels when they degrade say from 0.3 moa to more than 0.5 moa.  Show me an M4 or other current Army small arm that is held to that level. 

I haven't read up in a while, but last I recall, the 6.8 cartridge was "totally new", but probably not that different from the SPC. 

I haven't read up in a while, but last I recall, the 6.8 cartridge was "totally new", but probably not that different from the SPC.

The base of the brass cartridge isn't brass, but steel or something.  This helps reduce weight, something about the primer, and with pressure. It isn't welded together either, its pushed together.  And 1 concern was what if that base falls off or separates from the brass. SIG says it takes 1500-2000 lbs of force to pull them apart.

From the vids I've seen and it was big guys shooting the Spear, the recoil is huge.  Good luck providing suppressing fire (mag dumping in control).

Also Lvl 3 body armor can stop this round.  The same armor typically cannot stop XM193 that's over 3000ft/sec.  Which is why LVL3+ and greater are needed to stop XM193. I bring this up because my google search popped up that this round/rifle is the body armor killer.  Unless they're talking about Russian made plates.

I'm going to swoop on in and  call this a Government attempt to control the ammo
supply.
The selected Cartridge won't be widely available to civilians - on purpose.
It is a Hybrid case of steel and brass.
Not going to be much civilian call and use for such
ammo
So most ammo people aren't going to invest in it.
Unlike .223, .308, 30.06 or 7.62X39.
All pretty useful for sport shooting.
6.8 mm, not so much.
Just a thought from your local anti-government
Troll. 

SNIP

Also Lvl 3 body armor can stop this round.  The same armor typically cannot stop XM193 that's over 3000ft/sec.  Which is why LVL3+ and greater are needed to stop XM193. I bring this up because my google search popped up that this round/rifle is the body armor killer.  Unless they're talking about Russian made plates.

Yeah, speed kills, at least many rifle plates/armor. 

Heads up that many people know that.  As well as can and do load up ammo that have some blazing velocities.

I'm going to swoop on in and  call this a Government attempt to control the ammo
supply.
The selected Cartridge won't be widely available to civilians - on purpose.
It is a Hybrid case of steel and brass.
Not going to be much civilian call and use for such
ammo
So most ammo people aren't going to invest in it.
Unlike .223, .308, 30.06 or 7.62X39.
All pretty useful for sport shooting.
6.8 mm, not so much.
Just a thought from your local anti-government
Troll. 

That's part of the allure.  What one can't get, as wells as those who can get will either "capitalize" or just get to gain attention. 

6.8 SPC is a short cartridge. The SPEAR shoots 277 Sig Fury (6.8x51mm).

I'm going to swoop on in and  call this a Government attempt to control the ammo
supply.
The selected Cartridge won't be widely available to civilians - on purpose.
It is a Hybrid case of steel and brass.
Not going to be much civilian call and use for such
ammo
So most ammo people aren't going to invest in it.
Unlike .223, .308, 30.06 or 7.62X39.
All pretty useful for sport shooting.
6.8 mm, not so much.
Just a thought from your local anti-government
Troll. 

I didn't read into it yet, but could the Spear fire an all brass 6.8 and be OK?  Then the civilians can get the non hybrid ammo, which would be a lot easier to produce. I mean SIG designed the casing for specific reasons (to meet military demand), but the gun wouldn't blow up with an all brass case right.  Basically it's like a shorter 7.62 brass case, so trim existing 7.62 brass for people who reload.

6.8 SPC is a short cartridge. The SPEAR shoots 277 Sig Fury (6.8x51mm).

Better re-name that for "civilians" then. . .

 

Has anyone here looked up the cost of the Spear?

Then the cost of the ammo?

I won't be starting my thread about buying one. I rather dual wield Colt M45A1's and  give away 45ACP ammo like they're candy.

Has anyone here looked up the cost of the Spear?

Then the cost of the ammo?

I won't be starting my thread about buying one. I rather dual wield Colt M45A1's and  give away 45ACP ammo like they're candy.

A while back they were posting/advertising it as a limited release and $7999 MSRP.

No idea about the ammo.

Edit: It was a first production special release price. Not sure about a standard production. I haven't really paid attention to it because Sig is boujie.

https://www.sigsauer.com/mcx-spear.html

M250

Perks
Can feed belt with top cover closed.

Top cover is about 5 inches long. Not the entire top needing to be opened.

Barrel change compatible to use NATO 7.62.

Gas adjustible for when MG is dirty and slowing down.  Allow more gas to help cycle the action.

At 12lbs, lighter than both 249 and 240.

Con
Cant use M4 mags in an emergency. M249 can use them, but on full auto, will jam often due to feed rate. But slower shots are ok. This is good in case all belts are depleted and the gunner needs ammo. U wont have a 12lbs paperweight. Xm250 cannot accept mags from the Spear. Both shoot the same caliber 6.8 SPC.  Like how the m4/16 and m249 both shoot 5.56.


Overall IMO civillian, this is a good replacement.

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After Afghanistan I can understand why they would want to change up the ammo so that it's not compatible with the enemy. Oh wait. They think we are the enemy...