Shots Fired 277 Fury & 6.8 x 51

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"This video is for educational and entertainment purposes only. All guns displayed off the range are safety checked and only displayed pointing in safe directions. All footage at the range is private range and the gun is handled by a Range Officer certified by the National Range Officer Institute. This video is not promoting or attempting to sell guns. Sale of guns is heavily regulated and I am not associated with any federally licensed firearms dealer. The actions of all firearms displayed are unmodified and presented as commonly available from original equipment manufacturers. This video is not instructional on building or modifying firearms. Nothing has been done to increase the rate of fire or lethality of the firearms displayed nor would I advocate making such modification as it presents a huge liability and potential risk of harm or death."
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In this video we take a look at 277 Fury and its counterpart 6.8 x 51. We go over our finding from actually getting to shoot these two new calibers.
Please like, comment, and subscribe, it really helps us out.

[@derrictaylor1181]

The way it was moving that plate at 1000 yards was very impressive. Another great video.

[@AlabamaArsenal]

Yes and I may should have put it in the video but that particular clip was the hotter 6.8 x 51 loading, but no doubt it has a lot of power for sure. Thanks for watching!

[@DBravo29er]

Barrel and throat life, bruh. We know how fast rounds wear barrels... 300 Win Mag, 300 RUM, 270 WSSM....even 25-06 & 243. If barrel life exceeds 5k rds, this indicates advanced metallurgy. Which means it's going to be HUGELY expensive.

[@MasterReptile25]

I heard the military would train with the brass ammo then when in combat switch to hybrid.

[@fixedG]

That's my concern as well. There's no free lunch, physics is undefeated and we know what higher rifle round pressures do to barrel life. The civilian pressure round that doesn't have the special bimetal case will be comparable to what we're all used to but it's also missing out on the capability of the higher spec round. Replacement barrels able to withstand that of pressure over an active deployment firing schedule are a simple, if expensive, logistics supply issue I assume the bean counters have accounted for but can easily be neglected.

[@Clockwork0nions]

The Army already tested the rifles past 13,000 rounds per barrel lol.

[@__Dave__]

I want inconel CHF barrels, that’d be sick lol

[@williamwinn948]

The military has enough money to send billions to Ukraine they have enough money to replace barrels.

[@realghostactual]

Just want to give my input from a former infantrymans standpoint on actually using a 5.56 weapon in Afghanistan. I was a saw gunner on my first deployment there, but my company was also attached to Combined Joint Special Operations Task Force and we were attached to a 3rd SFG ODA team. Most operations we did, I did not take my SAW (which if I have to remind, is a 5.56 light machine gun) but would take someones M4 instead if I felt the mission called for it. In more "kinetic" operations where it was guaranteed a large gunfight was to occur (sometimes lasting multiple days), I did bring my SAW. I wanted fire superiority by "volume", rather than accuracy - and that to me was an "operator preference" decision I made on my own going into certain areas. When I did take my SAW, It was configured with whats called the "PARA" barrel...its a shorter 12 inch barrel over its longer barrel as it was more maneuverable around structures and in buildings and it kept it quite light. I just kept the longer barrel in my truck and would use it if i felt a barrel change for heat reasons needed to occur. With that said, we were in NE Afghanistan where engagements were "decently" far. Id say the furthest was around 400 meters and the closet being sometimes just a few meters away. The ranges were quite dynamic. At this time, I was issued the M855A1 ammunition which is hotter load than its predecessor M855 (green tip) and the bullet was redesigned for the tip of the bullet to be steel, followed by a lead core copper jacket behind it (basically its 2 parts), I can recall an engagement I made with that 12 inch barrel on a fighting position of 2 taliban fighters that were around 350-ish meters away. Both fighters had their bodies exposed basically from belly button up firing on other positions of our element, and I fired a few burst strings into their position and they dropped instantly. I did not do a BOGBDA on that position (Boots On Ground Battle Damage Assessment) to confirm where on their bodies I hit them, but ISR (the drone above us) did confirm they were killed. A few operators from the SF team (the 18 Bravos of all guys) preferred their MK18 mod 1s over their ALSO issued SCAR-H using the MK262 ammo (77 grain SMK bullet) and affectively dropped guys easily out at 400 meters and hit that "off button" on some fighters. There were times the Taliban did ambush us on patrols where their positions were maybe 800+ meters out, even way more than that sometimes. Their weapon systems being typical AK47s firing 7.62x39 and PKMs firing 7.62x54R and their fire was so ineffective. They were way out of range for us, we had some snipers come out with us to take them out, or set up some 60mm or 81mm mortars to take out those fighting positions and we took our time doing so because their fire was extremely ineffective given their distance. If anything, we would just call Air Weapon Teams (typically Apache's) and just have them take out the positions and it was a good day. In my opinion as someone whos been down range in Afghanistan where engagements WERE further sometimes than 300 meters - 5.56x45mm did its job. I never really thought a new round or weapon would help me accomplish my job better or anything like that. Some veterans may differ on the opinion but we all had a different experience. Im just showing mine. In my opinion - i think the US Army was taking a look more at statistics on paper, rather than actual battlefield feedback and looked for an excuse to dox the M4 Carbine entirely out of its arsenal and get a new one. The biggest reason it seemed the Army wanted a more capable weapon was the ability to defeat rifle rated body armor. Some have said to me "Maybe we are getting ready for a war with China or Russia" - but my only problem with that statement is....Russia does not issue rifle rated body armor to standard Infantry units and China only started to just 2 years ago and its still a slow progression. So why was the Army in such a rush to acquire a new weapon? I would say to that - use your imagination and think of an "army" that does have body armor. Thats my 2 cents.

[@jamiehayes4820]

I'm curious. Who would that be ? Private maybe?

[@dom4002]

My thoughts exactly, but who would turn on their brothers?

[@johngerson7335]

I said this in comments sections on uploads about this system from the first l saw it. They intend to place themselves out-of-range (yet _very_ able to reach _and penetrate_ whatever opposition they may encounter) of 90% of what they might encounter in the situation you obliquely referred to.

[@johngerson7335]

@@dom4002 Many of the newer "employees" would if ordered to, in my humble opinion.

[@NelsonZAPTM]

That's alot of words. I'll wait for the movie

[@fixedG]

Man, that velocity bump is wild. That delta is similar or greater than going from a 6.5 Creedmoor to a 6.5 PRC.

[@daltonv5206]

2600 fps out of 13" with the regular 277 is impressive

[@AlabamaArsenal]

I totally agree. Get a little longer barrel and it makes it even more impressive. Thanks for watching.

[@Aaron-zu3xn]

300 blackout sbr with a forward grip switch the barrel out for a .277 instead of a .308

[@davidh9659]

There's 308win factory ammo that will produce similar velocities with 150gr the same barrel length, though that is with fancy powders. Buffman range tested the 150gr SST superformance from a 12.5" at 2550ish...and that is within the comparatively low regular 308win pressure specs. To exceed the 135gr ballistics, you'd have to step it up to 155gr ish bullets tho. Just imagine what a hybrid 308 cartridge might do with 180 or 200grain pills, jesus! Kick like a 300 win mag, I presume

[@seanwhite304]

According to Sig they are using a new barrel process that allows barrels to be way more durable. This process is superior to HF . Sig has hinted to this process but hasn't even released any good info on it either . The M5 barrels per TDP is supposed to last 12k - 15k life expectancy. I'm actually pretty interested in picking up Sig Cross 16" 277 Fury . Seems to me like to would be solid choice for LW Hunting Rifle for Lower 48 .

[@CircaSriYak]

The XM5 barrels are made out of an unusual and expensive steel called Maraging Steel, which is also used inside jet engines to withstand afterburner. It's so unusual that it's a closely monitored material by the US government as it's highly suitable for uranium enrichment centrifuges.

[@AlabamaArsenal]

WOW! I did not know that, very interesting. Thanks for watching!

[@strikerE92]

It should be noted that there is a steel cased, steel tipped 6.8x51 EPR bullet that has only been seen very recently in US Army testing with the XM250

[@AJ_Sparten1337]

The problem with government military philosophy that has also bled into the private sector is the attempt at having the universal, one thing to do it all piece of gear. The army did this earlier with camouflage when it introduced multicam; which has subsequently led to the creation of it variants for specialized situations. Arid for desert conflicts, Tropic for jungle and forest conflicts, Black for nighttime operations, and Alpine for snowy areas. Now, the military is asking for a rifle and cartridge to operate in both close quarters and snipe targets out to 600+ meters. It is not possible. Just like there is no universal camouflage pattern, there is also no universal cartridge nor weapon system. .300 Blackout is one such example because it was primarily designed to be used against armored targets in close quarters. That is why your cannot use your .300 blk rifle in a rural setting because it loses velocity very quickly at relatively short distances. On the flip side, 7.62x51 is designed to be shot at larger distances, but weighs a lot and is only effective out of a longer barrel, making it ineffective in CQC. The M4 and 5.56x45 are not going away anytime soon. The earliest is going to be in the 2050s. I expect to see the M5 to be deployed ALONGSIDE the M4, not replace it. Some units need to be trained for ranges combat were as others need to be trained for CQC. The medic cannot be the communications guy just like the sniper can’t hack into a mainframe. No one person can do everything and the sooner the government and public realize that, the sooner we (the United States) will be back on track to being the most effective fighting force in the world with ZERO countries being anywhere remotely close.

[@markmilan57]

So this gun had a short barrel; more punching power; lesser recoil and highly accurate. Good to deliver.

[@BattleshipSailorBB63]

Great video! THIS is the kind of real world, head to head data we need. And that's just out of a 13" barrel? Crazy!! You only touched on it briefly, but yeah, I do think barrel erosion/burnout is going to be a very real problem; one more easily solved with the Govt's coffers than when this is more available out in the Civilian world. My guess is that Armorers are going to have to keep a Logbook with round counts for each rifle, and replace barrels on a set schedule.

[@KJ-ym1qg]

That round still has a lot of energy even at 1000 yards. I think you would have no issues running the softer shooting stuff for up close work.

[@AlabamaArsenal]

I completely agree, really the softer shooting stuff is still pretty potent. Thanks for watching!

[@Liamisdead99]

@@AlabamaArsenalalso longer barrel life, especially when your putting lots of rounds down range for training and combat

[@kieranharper261]

Have yet to shoot the round myself, but the math of it alone is amazing. I hope the 8.6 BLK gets some serious development and becomes to the .277 what the .300 BLK is to 5.56

[@TheGhostOf2020]

Holy… out of a 13 inch barrel that’s insane. Literally next level kind of ballistic potential.

[@zedhiro6131]

One of the other stated reasons for the change is body armor penetration. I still say the platform is fine, but going back to a battle rifle cartridge is wrong it’s a lesson we will have to relearn.

[@danielschmidt123]

I like it. But it seems like a bit too much juice for cqb. Perfect DMR. But what im more interested in is the ammo tech and actions that handle those pressures. Imagine applying 80ksi to a 6arc or even a 556. Getting a 108 gr bullet at ~2900 fps out of such a small cartridge would be awesome for all applications...

[@ryanvalicek7291]

That rifle still weighs and kicks too much for wide adoption. Still, awesome video!

[@Asghaad]

that rifle weighs exactly the same as HK416 rifles Marines currently use ... look up any currently used rifle and you will see its around 4kg/8lb just like the M7, whats heavier is ammunition

[@ryanvalicek7291]

@@Asghaad and the optic and the suppressor. Still kicks too much for little people like task and purpose.

[@Asghaad]

@@ryanvalicek7291 both optic and suppressor will also go on the HK... And that's the recruitment/personal distribution problem, put weaker/smaller into vehicles not on front lines, if someone can't handle weight and recoil of the rifle that's lighter and with less recoil than Garand ... Maybe they just aren't cut for infantry duty...

[@6tuf85dyfu]

This is a really neat rifle that also has zero business being a replacement service rifle.

[@TheTGRproductions]

These Hybrid Cartridges are absolutely insane and a game changer! I was reading online that a guy took .308/7.62 calibers and stuck them in 6.8 x 51 Hybrid Casings, and was able to get a 168 grain projectile moving at over 3,256 FPS in a 24 inch barrel. That's over 3,900 foot lbs of Energy! 300 Winchester Magnum territory! I can honestly start to see other companies creating similar products for other cartridges like 5.56, 7.62 x 39, etc. It would just make these already great cartridges even more potent!

[@spenser5762]

This is the content we need!

[@Soravia]

Deployment ONLY 6.8x51mm is the only full power round. It makes the necessary velocity at short military issued barrel to penetrate armor at required combat distance.

[@Talex-jb8bp]

Something people may be interested in I’ve heard that the military is loading their ammo to90,000 psi to 100,000 psi and there’s going to be an armor piercing variant which will be a tungsten penetrator loaded to 120,000 psi versus the 80,000 psi version that the civilians can get

[@alexgavieres8293]

That's probably what it would take to get the performance they're looking for.

[@j.r.1030]

Not gonna lie, sometimes I watch these videos just to hear his soothing voice 😊

[@AlabamaArsenal]

🤣🤣🤣 just glad that you’re watching! Thanks brother!

[@Randy_84]

the opening scene 🔥love how the background moves vs the shooter/rifle.

[@alabamapredatorpoachers9514]

Beautiful, I'd love a 277.

[@AlabamaArsenal]

Yes I do believe I will be in the hunt for my own 277 Fury as well. Thanks for watching!

[@HighRoad317]

Finally an exciting new cartridge!!!

[@RockSolitude]

This rifle would be great in the semi auto DMR role to replace the CSASS and M110. Heck even issue one to every squad. Recoil and barrel life would be much less of an issue then. But nope, the army decided they wanted a full sized SHV magnum cartridge full auto battle rifle in the hands of every average infantryman. Amazing.

[@GoldenWebb]

Man that’s bad! Love the looks of it

[@newdefsys]

Great video ! I'm very interested in the new .277 round and the entire MCX line. Unfortunately my wallet told me 'hell no' when I asked if I could buy a Spear LT. So, KZbin vids are as close as I can get to seeing one in action. Thank you

[@marumisu9560]

Tactically if the barrel life is shorter, when the enemy gets ahold of them, they won't be able to use them for very long.

[@shooteveryday1841]

Extremely well produced video, tons of information here. Thanks

[@AlabamaArsenal]

Really appreciate that man! Thanks for watching!

[@stephencooper5040]

The hybrid metal case that Sig designed for this cartridge is easily the most significant advancement in small arms in the last 100 years.

[@alexisdetocqueville9964]

Kanye Runaway beat around 7:30 made this video that much better

[@gqarmory]

Nice Job Tim! Certainly a pretty cool new caliber. Interested to see how this caliber does on the market.

[@Tacet137]

Something like Tavor 7 but in 6.8x51 is now my dream gun

[@Tom-iz8oy]

I’m curious your thoughts about .277 compared with 6mm ARC. From an energy transfer standpoint, the .277 and 6.8 x 51 are likely winners but by how much? And is it worth the decreased ammunition carrying capacity? I’d love to see an analysis of the SPEAR against FN’s new IWS (in .264) and Geissele’s 6mm ARC rifle. Great video, I love the real data collection and the emphasis on energy transfer at distance. It doesn’t seem like something many other people are paying attention to.

[@AlabamaArsenal]

Really appreciate that. I think that if you included cost as a factor the 6MM ARC would be the clear winner, but the military obviously doesn't care about that, because any of the current rifles could be cheaply retro fitted to accommodate 6ARC. We have several 6ARC videos that I'm working on currently perhaps as I collect that data we'll do a 277Fury versus 6ARC video because I think that would be interesting as well. The military also hasn't been clear what level and it what numbers the Spear and 277 Fury will be implemented. So this could just be a replacement for the current SCARS that have gotten very mediocre reviews from the troops or it could be a more wide spread adoption, hard to say at this point. Thanks for watching!

[@Tom-iz8oy]

@@AlabamaArsenal that would be a great video. Definitely interested in body armor penetration at distance.

[@chanoleyva8584]

Well considering the 6.8 will not replace 556 who cares

[@FitnFire]

Excellent rundown!

[@AlabamaArsenal]

Really appreciate that man! Thanks for taking the time to watch.

[@GatlinMcDoubleStack]

I’m definitely buying it one of these days

[@jakecheck3225]

I can see this rifle becoming mainline infantry rifles for soldiers to be supported with good supply lines and means of transporting large amounts of ammo. Special forces are probably going to stick to 5 56 and maybe have a man or two on the team running spears. No more will a guy be weighed down by carrying a big ass 308 with a 5.56 rifle on his back. This will be big.

[@EdgarPerez-tb5le]

BROTHER. YOU. ARE. THE. BEST!

[@AlabamaArsenal]

Appreciate you watching!

[@baileymitchell6650]

i feel like 6 arc would have been a very comparable and viable cost effective solution 108 gr, fits in current m4 platform, high bc bullets and barrel life wouldnt be such a concern plus can easily reaches 1000 yards easily

[@patgray5402]

Who would have thought. You could increase the performance of a short barrel by increasing the power.

[@Drobert882]

That is how it's done !!! Great job

[@rubengonzalez5155]

“ No educated guesses “ Now that’s information that is useful. 👌 Looking forward to the second part.

[@Mil_Spec_Spartan_]

A .308-action-size battle rifle that emphasizes power over volume of accurate fire…. The exact archetype of firearm that got us fucked in Vietnam, and the very reason the M16 was developed in the first place.

[@wesleyallen1214]

6.8x51 is sig really getting 3200fps out of the 13inch barrel. obviously i want them to have achieved this but it seems to good to be true even with 80,000 psi pressure..

[@alexgavieres8293]

Agreed. Seems pretty damn weak so far.

[@wesleyallen1214]

@@es4583 that’s exactly my point. I’ve seen some talk that sig got these numbers out of a 16. Which is slightly more plausible. In theory 6.8 has potential to be a great caliber but going with 6.8x51 your still adding the same amount of weight as a 308. Even with a short barrel.

[@wesleyallen1214]

@@es4583 I’m curious do you know numbers that beat armor. Speed/weight. I know 30-06 has a good armor pen round but I’m not sure the speed that it’s going.

[@Maniac742]

This gun is the unicorn of unicorns right now, and so is the caliber. You can find 277 sig fury ammo, but no gun to shoot it in. Even the Sig Cross's in 277 fury are non-existent on the commercial market. Every shop with them listed is out of stock, which leads me to believe they were never in stock to begin with.

[@damongale45]

I'm a big Sig Fanboy I love what they do and love that they won... However I personally would have picked the General Dynamics entry instead. As great as this rifle is the hot load makes me nervous I think the Bullpup design with longer barrel would have been a better option. I also say this as a European 😆 Not trying to start an argument just my personal opinion...

[@meanman6992]

I would expect a projectile similar to the M855A1 & M80A1 EPR in construction.

[@methodsocratic]

Gotta hit on at least one big issue bud: as Gun Jesus pointed out on Forgotten Weapons, the M5 loaded with NGSW optic weighs about 40% more than what my fully kitted M4 did when I was down range. The ammo also weighs a shit ton more than 556. I don’t know about y’all, but my knees and shoulders are permanently fucked from humping in kit that already weighed a ton. Regarding ballistic capabilities…we won’t know shit until we know more about the actual rounds and loadings the military plans to use. Which no one without a clearance and need to know does, at least for now. So, all we know for a fact now is that combat loadouts already suck, and this will make them worse, if actually adopted and issued.

[@sjorgen9122]

Would you be able to post a google sheet of those ballistics tables? Fantastic data, I'd love to be able to pull it into my own comparison spreadsheets. I'll get to work manually copying it over, but I think a lot of viewers might appreciate it. Loved the video!

[@AlabamaArsenal]

Available on my Patreon Page, All loadings used in this video. Thanks for watching!

[@jimmieburleigh9549]

I don't see it as a total replacement for all troops but I see it as special unit use. I see something like the 300 blackout as more of a total replacement seeing all you need is a barrel change

[@AllThingsLoud_]

.300 is what some units used on occasion already. Doubt if it’ll have a chance of permanently replacement though

[@jimmieburleigh9549]

@@AllThingsLoud_ true but I don't think the 277 will either. I don't see Congress approving that expense for total replacement

[@matushonko7223]

The problem i see here is the lack of full-auto controllability;what we see in ukraine is a lot of shorter-range engagements, trench clearing and whatnot- where full-auto (low-recoil) weapons would indeed be useful perhaps we will see a return to the WWII "riflemen-smg gunners" combined teams? or replace the standard backup weapon for a mid-range (

[@seanduncan33]

The multi piece case isn’t new. It’s only new because sig did it now. It’s been used for a while.

[@KevinJohn556]

Maybe it’s me, but I still believe we should have used the 6.8 SPC using the hybrid case in the XM7 and the XM250. Designated marksman rifles should be the 277 rifle and have a xm250 with 277. Heavier hitting ammo while losing only I think it’s 3 rounds with current mags but I know magpie has a 30 round one.

[@randyclark7914]

Awesome video brother! Glad to see that you’re out of the “doghouse”

[@AlabamaArsenal]

You and me both! Hopefully I can stay out of the doghouse. Thanks for watching!

[@isaacbell5646]

Thank you!!! Can't wait for the cross in this caliber.. Please hurry Sig!!

[@mattstarr2674]

Hitman Industries has 277 fury ar10 barrels for sale works in standard ar10 bcg and magazines

[@blckandwhtknight]

Given all the crazy stuff that can happen in combat to a rifle bore and chamber I'm curious what sig did to address a catastrophic failure. A kaboom at 80psi sounds like a bad day.

[@AlabamaArsenal]

Interesting point. Thanks for watching!

[@DoomSlayer-ow4jq]

I like how this video is made.

[@Rick-ux5ku]

Wondering if you could do the same thing to the case only to a 308.

[@StevenL00]

3:32 that side turret is coming loose, hope you caught it in time lol

[@Christoph1888]

Will go down as the shortest lived military cartridge in history

[@apsaffles531]

Seems like it would be a great round for a compact hunting rifle. I personally would love to throw my suppressor on a 16” barrel that produces the same ballistic performance that I get out of my suppressed 22” barrel. Much more handy.

[@Lonewolfmike]

I know SIG has a hunting round that is constructed exactly like the military round and has a higher pressure than the .277 Fury. So I don't know if the actual military round will get out in the world.

[@perspicacity89]

Phenomenal video. Thank you!

[@KittehONaLeash]

longer range is nice and all but still events in Ukraine show that most infantry engagements are still within 300 yards. Also troops loved .223/5.56 nato when it came into service in vietnam for its devastating effect on target with the intal ball loading of M193 of 55 grains. m855 gave "better barrier penetration" but pretty much cucked the round and made it extremely yaw depended more so than the M193. they also liked it for being able to carry way more than .308/7.62 nato. A 180 round load out of 5.56 is only 6 pounds while the same 180 round load out in 7.62 nato is 15 pounds. So for the same wight of 15 pounds load out you can carry more than double the round count with 5.56.

[@rdsii64]

As usual, top notch video. Love the content. I have a spare AR10 receiver set in my safe. 277 sig fury may be a worthwhile build.

[@mattstarr2674]

Hitman industries has them

[@santanagamingcinema]

Any idea when it will be available to the general public?

[@marshmower]

Maybe we can finally get 30 round 308 P mags.... Are they proprietary to xm5?

[@caseybrown5183]

Thanks for the work.

[@AlabamaArsenal]

Appreciate you watching!

[@Rapture_11B]

The new CSASS Is already being chucked out the door I guess. H&K: Fuck me right Sig: Skill issue

[@mwsr2521]

Awesome video, Love the concept, unfortunatly, the 277 fury and large frame MCX is practically unavailable and sig while making tremendous strides in recent years, has a spotty record of product support.

[@mysterymeat1216]

Well the Spear Heavy series releases next month in both .308 Win and 6.5 Creedmoor starting at about $4k. These will finally be flooding the market

[@orion8981]

​@@mysterymeat1216 At 4k a piece, I doubt it will flood the market. It's doable, but until they come into the high range of AR-15s, they'll be curiosities at best.

[@mysterymeat1216]

@Orion people said that about the MCX Virtus at first too and look what happened. It's one of the most trusted platforms currently available. The Spear will be no different. Just needs some time to get its few issues fixed

[@orion8981]

@Kaleido The Virtus isn't $4000. These things will about as common as SR-25s or HK 417s. The Virtus attacks the same market as mid tier AR-15s. It's a cool rifle and I have no doubt it'll be popular for a certain type of person, but it isn't going to be a consideration for 99% of non-contract buyers.

[@robertdole5391]

Some background: Winchester received the contract to run the US Army Lake City Army Ammunition Plant (LCAAP) and in Jan2022 received an additional $8 Billion contract (cost plus AND firm-fixed) to manufacture the NGSW 6.8x51mm ammunition. In order to manufacture the quantity of 6.8x51mm required by Dept Army this will require the construction of an entire new series of buildings along with upgrading existing equipment. The estimated timeline for this was discussed in the official announcement of the NGSW award and will take a few years. During the interregnum, Winchester / LCAAP will continue to manufacture the projectile (e.g. the M80A1 derivative) with the hardened steel penetrator tip while Sig Sauer will manufacture the case bodies, powder etc and produce the final cartridge product. LCAAP did mention during their press conference (can be found here on YT) that they will work with Sig to “optimize pressures and velocities” so I think what we are seeing here is very similar but ultimately not the exact loading to the final product that LCAAP will produce in their factory once fully built and functional. It is safe to assume that the 6.8x51mm ammunition (hybrid) shot during this review is left over ammo used for the test and was using a 6.8mm “surrogate” round that is intended to be similar in weight, accuracy and trajectory to the 6.8mm exposed penetrator tip round of the final design. Remember this whole program was sold to congress as a solution to defeating enemy body armor, so they need to deliver on the penetrator tip. If you ask me, even with the steel penetrator tip, this may be enough to punch though cheaper NIJ Level III / RF 2 plates but without a a tungsten tip (similar to XM1158) then it likely will not consistently penetrate NIJ Level IV/RF3 as demonstrated with similar and more lethal threats on the KZbin channel Buffman. So while this may work to some degree (ie punch through cheap Chinese armor plates) NIJ Level IV/RF3 and equivalent plates are just getting cheaper and easier to manufacture…so the end state may be billions of dollars spent by US Army to make a rifle and round able to punch through Chinese armor only to have the PLA upgrade their existing armor for a few million dollars and render this ammo and the extensive effort and investment null and void. We shall see.

[@bavariasuhl]

i got one of the 1 of 50 Sig spear NGWS (with can) released. just added a sig spear lt (pistol and rifle) to join it ...

[@AlabamaArsenal]

You are a very lucky man! I knew I could get NGWS Spear, but I liked this so much I bought an LT for my personal collection and its a very nice rifle. Thanks for watching!

[@nikos6220]

Awesome video. Still I only see those adopted as DMRs, too heavy too limited mag capacity. But then in that role combined with the new Vortex solution on top - overmatch DMR Btw Your quotes for the 7.62x51 seem to be a bit on the low side. A Barnes TTSX 130 grain gets up there out of a 16 inch

[@IAM-o7o]

It seems like more of a sniper rifle than anything else.

[@timothylevin2661]

80k psi will be hard on barrels

[@fl_protection]

Ahhhhhh, come on bro. You left us hanging with the level 4 plate. lol. In all seriousness, awesome video. 🤙🏼

[@VilleLiski]

Steel is less dense than brass. (You pointing out the weight of the cartridge)

[@ChiquitaSpeaks]

Make those copper bullets on a 16 inch barrel and you might even break 3K on the low power load i’m only Single loading high-power for long distance… not to mention you should be able to kit a barrel swap to shoot standard 308

[@razormp]

great video…its the M7 now FYI

[@alexs1972]

If Sig releases the 6.8x51 hybrid rounds for the SIG Cross, it'll dominate the factory class at NRL Hunter

[@ivaniuk123]

Love the explanations!! Can't wait for the next video.

[@SugarFreeTargets]

TLDW: 13" barrel in 6.8x51 performs the same as a 20" barrel in 308. That's impressive. Not sure if I want to carry that weight but it's impressive

[@Tacet137]

Hella impressive and then consider that 6.8x51 has higher sectional density than .308/7.62 NATO, so it's gonna be much better at penetrating body armor

[@СергейМогутов-ъ4д]

The thing is that you can just change 13" barrel with 20" barrel and that is a sniper rifle for everybody, when you need that (mountains of Afghanistan etc.).

[@Asghaad]

better, 308 goes subsonic way sooner than 277

[@samrogers2356]

It's is my understanding that sig should be releasing a 277 barrel for the cross soon. Would be a nice set with a 308 barrel. Looking forward to the ubiquity of 277/6.8x51 that we have with 308.

[@AlabamaArsenal]

Yes I am also hoping that SIG releases that 277 Cross barrel very soon. Thanks for watching!

[@tomsmith2209]

I would like to see what happens when you run the full fat 6.8x51 through a 20in barrel. Unless it's designed to burn all the powder in 13in.

[@1986GaryJr]

I need that buffer style tube for my Spear LT.

[@DesertCoyotes]

Probably should point out the 308 was a much heavier bullet, and would of been good to compare to the 135gr 308 loads as well to get a closer comparison. Excellent video still.

[@geezerp1982]

standard nato ball is 147gr so not a huge difference

[@joquin4618]

Alabama Arsenal new video is on 🔥🔥🔥🔥👊 ❤❤ ❤

[@AlabamaArsenal]

Appreciate that man! Thanks for watching!

[@StefanSu91]

That first scene… How did you film that? It’s revolutionary! It really shows how the rifle works.

[@tylerfranco920]

Never disappoints you guys rock

[@AlabamaArsenal]

Appreciate you taking the time to watch!

[@nymeriagloves3957]

how come they dont have a 16" barrel but keep the suppressor roughly in the same spot. like the suppressor threads are inset and a rear expansion chamber that goes over the barrel. logically seems like an easy way to not have total length increase as much

[@CasZeal]

Military adoption + length of service. If it was just military adoption .50-70 Govt, .30-40 Krag, .38 Long Colt, and 6mm Lee Navy (you can also arguably put .30 carbine in there too) would still be popular.

[@darthtyranus378]

sig really did something

[@RockinRack]

I really want to see what happens with longer barrels!

[@AlabamaArsenal]

Yeah I agree it will be very interesting to see what happens in longer barrels. Thanks for watching.

[@DB.KOOPER]

The case tech is what really interests me. I'd LOVE to see, say, a 6.5 Grendel round with that bi-metal case tech so I could get the velocity up while still retaining the small package/AR15 platform I have for a hunting rifle. In reality, for the average infantryman, the 6.5 Grendel (a much better round then 6.8 SPC in every scenario) or 6mm ARC would have been a better idea then letting SIG _buy_ another contract (SIG wins on cost not quality) for some bulky rifle with heavy ammunition. We've been here before, there's a reason we went away from such things. Maybe it's a good specialist rifle but an upgraded 6.5 Grendel round using this SIG case tech in a rebarreled M4 would do nearly as much and be far less costly but hey... it's just tax dollars right??? Or maybe it's some of Joes printed funny money??? So hard to keep up with the scams these days.

[@СергейМогутов-ъ4д]

1000 yards solid hits out of a 13 inch barrel? Wow

[@YoureSoVane]

It's not the real military loading. It's the training round. The Army will get an even higher pressure loading for combat use. Minimum specs were 3,000+ fps. Imagine barrel life in the final combat version? And the recoil in higher fire rate bursts? Try staying on target at medium distances with quick engagements.

[@rednecksniper4715]

Bro the Remington 700 is proofed at 90,000 PSI

[@calibhoffman4705]

I want to see a beefed up m24/Remington chambered in .277 and 6.8 I think that could be the military equivalent of 6.5cm

[@saintsinningsword]

Much as a meme that it is, still want to make to make an AR10 build with .277 Fury, can't get enough of meme calibres