5.7x28mm, 40gr VMAX, Hornady Black (90001)

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‪@scheels‬ ‪@hornady‬ ‪@CMMG‬
TSG IIIA: "ArmorKing" bit.ly/3Te2OKJ
This demonstration pertains only to the samples tested. This demonstration/review
may not be used to claim product certification, approval, or endorsement by NVLAP, NIST, or any federal government agency. Always seek official NIJ accredited labs reports for threat profiles.
* * The information presented in these videos is technical and educational in nature. All safety precautions are followed. Imitation or the use of anything demonstrated in my videos is done AT YOUR OWN RISK. This video is not an attempt to sell you a good or service. I am not a gun shop and DO NOT sell or deal in firearms. Such a practice is heavily regulated and subject to applicable laws. I DO NOT sell parts, magazines, or firearms.
**This video could contain affiliate links. If you use these links to buy something we may earn a commission. Thanks for the support! #FN57 #57x28mm #fnp90

[@Rowrin]

Man, I got into reloading almost 10 years ago because of 5.7 and now with all these new 5.7 guns coming out I feel like a kid in a really expensive candy store lol.

[@BuffRANGE]

So many choices now. :)

[@gnomereviews]

I’m gonna get into reloading eventually. Once I have enough brass where it makes sense.

[@minnt-y5007]

@@gnomereviewsbuy it already processed and primed

[@jackjohnson291]

Dang, mag down! Glad you weren’t injured.

[@jackjohnson291]

“…Pro mags tend to run the best.” That’s the first time I’ve ever heard these words-interesting.

[@BuffRANGE]

It's mainly because it seems at the time the DBX came out Promags were the most plentiful, and Dback designed the mag well around the Promag, which is slightly oversized from the FN mag. That size difference seems to cause failures to feed when I use the FN mags. I may bring it back out and do some more testing. :D SO my general recommendation is to use Pro-mags in the DBX :D

[@jackjohnson291]

⁠@@BuffRANGEAh, that makes good sense. Thanks for bringing knowledge and insight to the party! I’m always happy to see more testing. 😃

[@madczechoutdoors1088]

You ever tried this caliber on hogs?

[@almaadams3631]

They have been the "dogs" of the magazine world for as far back as I can remember. ( OK, I'm 57 so I can't remember a lot of things)

[@Airondot]

I’ve seen that happen with those AR-5.7 multiple times now. I’d love to have one but ripping case necks off and firing out of battery is such a major issue I could never justify buying one. Thank god the reciever was strong enough to withstand the explosion.

[@ticket2space]

Im so happy this cartridge is getting more attention. Its my favorite handgun cartridge by a longshot and the new firearms chambered in it along with new companies giving it abshot is giving me some hope that we'll see a price drop or even better... "Normalization" of the 5.7 round

[@notme3184]

For those interested in 5.7x28mm in other loadings, these are 10 shot averages I got out of an FiveseveN Mark 2 a week ago at 1200 feet above sea level and aroumd 35 degrees F. 5.7 T6b 2398.1 FPS SS197 1706.8 FPS SS195 2106.7 FPS SS198 2158.2 FPS S4 2347.4 FPS

[@jayblemsin4226]

Thank you super interesting. I'm surprised to see 195lf so close to 198. Was it the white box or the blue and white box ?

[@notme3184]

@@jayblemsin4226 SS195 was the blue/white box

[@jayblemsin4226]

@notme3184 that's great news for me I was bummed I heard the 195lf was useless and I got a fair amount of it

[@smthedon191]

DID YOU EVER RUN THE BLACK DRAGON FANG AMMO?

[@notme3184]

@smthedon191 No I haven't. I've never shot any. I doubt it's as fast as t6b and s4 though.

[@solomonle2108]

Another excellent test from the king of 5.7. More information on this round is always welcome to see. Glad to see you’re okay after the mag exploded.

[@BuffRANGE]

Indeed. Luckily it wasn’t a handgun

[@jamesperez1319]

8:06 I literally jumped😮 Thankfully no thumbs were required to plug any holes

[@BuffRANGE]

I got very lucky indeed.

[@ryanframe6893]

your vids are so helpful showing real life data; especially the detail with each test barrel/velocity/bullet weight/etc. if people watch your vids first, they could save some bank on ammo choices for specific weapons/purposes. keep up the good work! ✌️

[@BuffRANGE]

Thank you very much for seeing it that way. I never want to feel like I'm pushing a product/item on you. I'm here to present data and give you as much info as possible so that you can see through the smoke and mirrors that sometimes is accompanied with products.

[@lordw9609]

💯 No....1000%

[@LaughingPat]

Dang Matt, glad you're ok! Gotta say I was really excited for this one. More new brass in the market, crimped bullet, expected speed and penetration with decent deformation... But case neck separationS, like plural with an S in this small sample size? That kills the whole thing. Certainly doesn't bode well for their Critical Defense load which i assume will use the same brass. I hope that's a bad quality batch that they can recall and not the whole production. Cant imagine that getting past QC if they had the same results.

[@jamesbridges7750]

Those ar57's are notorious for that in full auto, think Ian even had an OOB in his 6".

[@madmaxd1]

Damn Matt, glad to hear there were no injuries although you had some equipment damage. I appreciate your effort on these tests and grateful for your effort and time devoted.

[@BuffRANGE]

Thank you!

[@andrewsanford2020]

Man, glad you are okay after that out of battery.

[@TheRealYungZulu]

Buffman Range with another BANGER

[@adariusroundtree2822]

Pdw is the sweet spot and also you notice the better wound channel deeper than the other 2 which is exactly its design purpose

[@apeshitcrazyman]

😮😮 i can't believe that ar57 grenaded! Wtf! Glad you're OK. That's crazy!

[@BuffRANGE]

Yeah ! Glad my kid didn’t shoot the gun at that moment

[@AniwayasSong]

I retired my trusty-dusty Ruger P85 (9mm) which I CC/EDC'd for decades, when I bought the Ruger 57. When Ruger then introduced their 'LC Carbine' in the same caliber, I was in Heaven! 😀 Folks love to dis this caliber, but once I took it to our range and put it through the various paces/targets, the 'Nay Sayers' ate their words! LOVE seeing new ideas/products hitting the market! Also love you using so many other platforms and comparing them side-by-side! So sorry to see/hear about that OAB experience, but damned happy YOU weren't hurt! Thank you so much for making and sharing this video! Got yerself another Subscriber, and I look forward to checking out your 'Library!' :-)

[@BuffRANGE]

Thank you kindly and welcome aboard

[@cf9590]

Velocities seem pretty decent here!

[@josephk.4200]

I’m more a fan of 30gr loadings because it’s just not quite enough of a difference to make a difference until you get to 10” barrel length. If it’s not making 2100 FPS it’s not worth looking at, imho.

[@Gamecrastinate]

That mag explosion could have been way worse. Always wear eye protection folks.

[@SmallHandsBigBite]

Love seeing your videos man, never stop. Your thorough documentation on various ammo types has been a great benefit to the community.

[@BuffRANGE]

Thank you!

[@nathan_k]

15:32 - Per your prior notice, Lyman Dies re: "to avoid shaving off the factory coating". What is the proper reason for separating these brass? So you don't accidentally do Hornady ones dry? 17:13 - Nevermind, you answered it. This video was ABSOLUTELY informative and neutral. God bless.

[@GunFunZS]

They are going to behave differently if there is a different internal volume. I would expect Hornady to need a little more powder to match the velocity.

[@robertm8401]

Downloaded common 5.7 is the reason I still don't have a 5.7 in the collection. Love Hornady Black, their 6.5CM OTM performs as well as any other match ammo using SMKs.

[@skyhop]

Their 450 bushmaster black is some of the most accurate ammo I've ever shot in my life. I've made single hole groups at 100 yards. It's good enough that with my equipment, I have trouble matching it handloading.

[@Throttleplays]

Dude that high standoff optic mount saved your forehead lol 😮 thanks for keeping that in the video!! And I appreciate all that goes into making these!

[@BuffRANGE]

Indeed the standard height rise saved my face no doubt!

[@EdensRemorse]

Finally getting your priorities right with your thanks - from one father to another, well done sir :)

[@BuffRANGE]

Well off camera they do get thanked every time they're out there :D Especially now that we're kind of the main care takers out there.

[@crxtodd16]

This new ammo looks pretty good, except for that case separation and explosion!! I think I'll stick to the VO Black Dragon for my personal carry round. Thanks for giving this round a proper review!

[@MattWaller04]

I don’t think the out of battery was due to the round, but rather the platform it was being shot from

[@RewardedRocki]

It seems like I have heard of people having similar issues with AR-57s before. Add in a thinner case and separation seems inevitable.

[@threaded4mypleasure818]

Thanks for the data and testing.

[@BuffRANGE]

Any time!

[@mr220v]

The problem is that most blowback guns can have an out of battery situation under these circumstances. Since Hornady decided to lighten up the casing, this makes case separation way more likely. Lightening up the case might not have been a great decision.

[@calangel]

How the extractor groove is cut amounts to a large part of the weight discrepancy between Lake City 223 cases. I think that's the case with semiautomatic focused cartridges in general. EDIT: The shoulder did look a touch thin on the Hornady brass, though.

[@EliteAmmunition]

Nope, I have sectioned the cases, the Hornady has thinner case walls and not in the best places to do that.

[@SpiritOfTheHeretic]

that failed case is all I need to see and I won't touch this stuff unless they get better brass

[@Black_Heart_Defense]

Glad you’re ok from the oob round. This stuff kinda spicyy

[@invasivesurgery4595]

Glad you're ok and that didn't happen with the P90. Some of these rounds scare me because of the lack of proper crimping.

[@anselmcaddell9580]

Glad your ok

[@alexandersakharov1908]

Finally something different than FN brass. However I am not sure if I like larger case capacity, I’d have to rework all my loads. Btw, she should wear safety glasses, out of battery discharges are real as you just found out. I have a scar on my forehead that reminds me of that every time I look in the mirror.

[@BuffRANGE]

I didn't notice she wasn't wearing eye pro until I started editing the video. The helpers know it's required. I'm guessing maybe she temporarily gave them to my son. Regardless I have 3 pair a Patreon donated funds for going forward!

[@ShastaBean]

@@BuffRANGE I forget to put them back on, far too often. Especially if I do like you and have on sunglasses, but then get in shade or clouds and need to see something. Glad you are all ok! That's a bit rattling, I'm sure.

[@SolarMoth]

holy shit, you handled that explosion better than I did!

[@BuffRANGE]

You had a KB too? What gun?

[@jayblemsin4226]

I think he meant it was jarring to watch. I tend to agree that was scary thank God you are ok brother.

[@sbreheny]

In my own testing (only used one brand of IIIA panel - Survival Armor LT-IIIA, made in 2012), I've had the SS198LF out of a PSA Rock penetrate IIIA. SS197SR and Fiocchi FMJ did not penetrate it.

[@BuffRANGE]

If Aramid/Kevlar that's likely why :D It's very much speed dependent, and to a point the NIJ standards are a min, and companies can slightly overbuild their products for some safety margin.

[@MrBnb13]

Very cool, can’t wait to get my hands on some

[@triggerbarPhD]

Looks like a great round. Glad you were safe. Interesting on the case thickness. Hmmm. Don’t overload this case!

[@johngreen2510]

Matt, would love to see a follow up on how the Hornady brass holds up to multiple reloads especially if the brass is “thinner”

[@BuffRANGE]

I mean in my experience the primer pockets give out before the brass does, but I guess we can try to find a way to see how it holds up

[@johngreen2510]

@@BuffRANGE correct…primer pockets start getting loose at 3rd re-load. Just curious about neck/shoulder and/or case head. Probably no difference with moderate loading but would be curious

[@brudamiranda3314]

Hey great info, I always like the testing! Thank you 💯Crazy scary one today super happy your good to go!

[@GunFunZS]

Cool to see that your wife enjoys this too.

[@BuffRANGE]

She likes shooting pistols :D

[@crxtodd16]

​​@@BuffRANGE That's awesome, man. My wife recently died of lung cancer, she was only 32. She was a nurse, I am a nurse, we both worked a lot. I wish I had put more focus on spending time together, but I had wrongfully assumed we'd have much more time to grow old together. I miss her more than I can describe. Now it's just me and our two sweet little kiddos. Anyway, I am sorry, that was TMI, but I just want you to know I think it's awesome you spend time with her and your family doing the things you love. That time is worth more than anything in this life, I think. Take care, I appreciate your videos. You and shastabean are my go to guys for 5.7 info! Thanks for putting out these solid videos. Glad you're okay despite that mag explosion!!

[@BuffRANGE]

@@crxtodd16 Thank you very much.! I am sorry for your loss. I lost my dad back in Nov, and that hasn't been easy. I can't fathom what you're going through :(

[@ShastaBean]

@@crxtodd16 dang - that was heart wrenching. Sorry for your loss. Glad to know you two had kids. She lives on, through them.

[@crxtodd16]

@@BuffRANGE I'm so sorry that you've been dealt that devastating blow... My wife died in November, also. So much for thanksgiving. Lol. Take care, man. Keep up the good work.

[@rob6850]

Man you called it on the case being thinner... yikes!

[@melissasmess2773]

I’m good on 5.7, not buying any of that Thumb Remover ammo 🔥🚑

[@skyhop]

@@melissasmess2773 The S&W wouldn't allow for this situation to happen. Everything else operates by purposefully timing case stretch as a means of function. The S&W is fully locked breech, gas operated. It does not permit the brass to stretch at all. This case stretch is why the brass is coated, the coating is to aid in safe stretch without case neck seperation.

[@BuffRANGE]

The cases in the M&P still expand and stretch a little.

[@skyhop]

@@BuffRANGE If they do it's hard to measure it, I have both an FsN and the S&W. The FsN radically changes the shoulder and stretches the shoulder forward, on the S&W I can't really detect any stretch beyond what you might get out of a 5.56 rifle.

[@AlaskanBallistics]

Glad you're okay brother

[@Swampytheroot]

Nice presentation. Interesting stuff. Glad that failure didn't hurt you. Mean stuff when a center fire goes off in unrestricted space. Is there somewhere I can find a parts list on the comped Rock? I have a threaded one that could benefit from some of that and a lighter optic

[@BuffRANGE]

It's a Eden Perfection Comp, Viridian RXF45, and their new C5L. The RXF45 is too heavy for the 5.7

[@TheScott2theextreme]

Damn. That 57ar. I like your format

[@BuffRANGE]

Thanks :) and it’s back online after a replacement upper

[@chrisrayburn]

Keep up the good work. Man b careful. God bless u

[@BuffRANGE]

Thank you very much, and indeed, safety first!

[@robertspickler1385]

Great 👌 Content.. Your channel has saved me Time and especially reloading components. Thank You 🎉🎉

[@BuffRANGE]

You are most welcome

[@ChrisGovert]

Trying to understand the 12" AR57 explosion because i have that exact setup... This mainly happened because the casing sheared and the next round loaded over it. When the next round was fired, it was impeded therefore it blew up? My question is: could this have happened on any firearm or is this related to the blowback design? Would this have happened as easily on a pistol? Main question: more of a round issue or the gun design flaw?

[@Mrclean308]

You got that failure on video, wow that was scary. Did not see that coming.

[@tuberaider]

Does thinner brass increase the risk of a case neck separation?

[@josephk.4200]

Certainly.

[@BuffRANGE]

If indeed it's thinner yes. I think that's why the P90 and FSN are a type of delayed blowback. I'm making some assumptions here, but I would think straight blow back puts more tension on the brass during ejection?

[@ShastaBean]

You had two separations? Or were there more than just those 2 you showed on screen near the end? Were they in various guns (and if so, which?), or all in the AR? It's crazy that it allowed for the next round to be struck! Thankfully my Ruger wouldn't allow that, or I would have for sure done it on my 1st round of Extreme Ammunition...I didn't know it happened and tried like heck to set off the next shot. phew!!

[@BuffRANGE]

I had 5 in total that day. #1 that took out the AR57, Then 4 more on the CMMG MK57 during the rest of the testing off camera.

[@ShastaBean]

@@BuffRANGE woah! I have thought often of getting the AR57, but dang - I don't know now...after seeing it allows for that next trigger-pull. I'm assuming your had to remove the neck each time from the CMMG and it won't fire OOB. That's good. And now that I review that detonation, it's SO fortunate that it wasn't on a bull-pup, as your face looks positioned right above the chamber/firing-pin, whereas that AR and others it's well behind that spot. Glad nobody got injured!!

[@BuffRANGE]

@@ShastaBean On the CMMG, I would chamber another round and then charge it, and it would usually pull the neck out for me without getting out the bore brush :D Since the BCG on the CMMG has to be locked, it would not fire :D. I will have to update you on how the revised BCG works in the AR57. I thought the PS90 action would prevent OOB, but I guess we need to test that now :)

[@ShastaBean]

​@@BuffRANGE That's a handy way to remove the neck!! When I was testing the Extreme ammo...he was blaming it as the fault of my gun, at first separation, because he claimed it got tested in a bunch of other guns. I put the question to Jay (on his M&P in depth review video) as to whether other various gun designs have quite different pressure curves, since pretty obviously the M&P does with its gas system...He basically said yes, and explained how the FN has progressive rifling. So maybe it won't happen on your PS90? Hornady perhaps needs to take a close look at your testing results, and consider very carefully on whether to leave this ammo on the market, imo. If dozens of videos go out with separations...? How's that going to look? I mean, heck...it looks like CCI pulled the Uppercut ammo just due to fail to expand in clear gel...even though it looks to work just fine in the 10% organic stuff, and likely in tissue. Thanks for what you do!!

[@BuffRANGE]

@@ShastaBean In reality the big guys like Hornady don't care about me. I gave this data to the contact I had at Hornady 2/27.. No reply..

[@TheNerdGun]

Dear Buffman Range I have found this interesting 5.7 ammo from Darkest Hour Defense. It is a 45gr soft point flat base lead core projectiles. A customer of his showed that it penetrates Lvl3A armor and made a massive crater in a 12” dense clay block. If you could get a hold of this ammo I’d love to see the actual terminal effectiveness on fbi ballistic gel. I’m looking for a good round to run in my SBR PS90 and thought this would be a good idea.

[@BuffRANGE]

IIRC this sounds like the ammo that another youtuber tested and had multiple failures on it. Their listed velocities are quite high. Do you have a link to them. IMO without a feed ramp on the P90 I would stick to long pointy bullets.

[@TheNerdGun]

I dont have a direct link but if you look this up on gunbroker it comes up 5.7x28mm 45 gr Pointed Soft Point Ammo 2380 FPS Box of 20. SS190 L191 SS198

[@TheNerdGun]

He has other offerings as well im just curious about it because idk what to run for a defensive ammo in the space gun.

[@nikos6220]

How do you get me excited in a 5.7x28 ammo review … own brass, different lacquer, more case capacity - can’t wait to see the results

[@turtlestackn1776]

What is your favorite and or recommended 5.7 ammo

[@BuffRANGE]

Vanguard Outfitters Black Dragon Fang /Vampire Fang Elite Ammo T6B (this scores lower because of accuracy issues from pistols) Elite Ammo Dev 2.0/3.0 Elite Ammo S4 RR Weapon Systems R37X Elite Protector 1 (or any 40gr ballistic tip at 1900 fps+) SS190 (limited penetration) Hornady Black Vmax AAC Vmax Vanguard Outfitters GPM Speer Gold Dot SS198LF (limited penetration) Or thereabouts in that order.

[@turtlestackn1776]

For just fun plinking is the FN gunr and American eagle or would you go with a ss197sr over those two

[@BuffRANGE]

@@turtlestackn1776 whatever you get cheaper. Ss197 is the most reliable

[@turtlestackn1776]

Where do you find ss190 I can't seem to find much of those other rounds

[@ShastaBean]

I'd add the R&R IS130D-v3 to the list. But I'm a fan of light & fast & fracturing + penetrating base. Maybe not the entire magazine if the threat for whatever reason requires slower & heavier & retention...but 1st shots, imo.

[@TheSkeptic000]

How would you compare this to the AAC version of VMax?

[@madmaxd1]

I say it's pretty obvious since there weren't any neck separation from AAC's offerings and they were up there in velocities too.

[@gnomereviews]

Wish you started w the MK2. Dang Rock lolz.

[@dwaynewalker986]

06-28-2024 I bought a " Space Gat " today to go along with my Rock 57 and Ruger LC Carbine in 5 7x28. Buffman, can you tell me how the V-max based bullets react in gel if the shooter pulls the little plastic nose cone out of the bullet?

[@jamesrogers5783]

on the AR57 upper , if it feels the least bit gritty whey cycling the bolt, it probably has the same problem mine had the hammer is contacting the bolt and binding up. trim off some of the hammer till it cycles clean with no snags or grittyness. --the ar57s seem to have the bolt reliefs cut way too tight-

[@BuffRANGE]

I'll check it out!

[@eternalbondedgrowthebg5025]

MANNN!! ARE YOU GOOD?!!😮‍💨Wasnt expecting That! 🤣

[@BuffRANGE]

Yep. I am unscathed. The gun not so much.

[@eternalbondedgrowthebg5025]

Yeah don't use those anymore 😅@@BuffRANGE

[@gremlinzd]

I'm wondering if the OOB would have happened in the PS90 or KelTec if given the chance.

[@BuffRANGE]

The KelTec yes no doubt. It happened during my review of the P50. The P50 is straight blowback and has signs of over pressure on ss198LF ;). The ps90 I believe has some safety built into it.

[@bobborlog1677]

I've had a few 9mm ar9's out of battery detonate on me man is that no fun I got a bunch of brass pieces in my hand

[@lemniscatelogos7917]

When is the 4.6x30mm hornady black test coming out ?

[@BuffRANGE]

Right here > kzbin.info/www/bejne/fKevcpaNoc2lrJI

[@lemniscatelogos7917]

@@BuffRANGE my maaan !!!!!

[@andyx6248]

I'm so glad I never pulled the trigger on the AR-57 upper purchase. What Gen was that upper? Thanks!

[@BuffRANGE]

Like 2023 brand new before they made a change.

[@matthewkabbash]

@Buff where are the delts? Dig the content. Picking up the Tisas to dip my toe in the 5.7 waters. When do you think we will see 5.7 ammo price decline. Who makes your glasses? Are they RX compatible

[@BuffRANGE]

I probably should do some more overhead pressing. I've been stuck at the 170-175 strict press for a long time. I got sucked away from progressive overload, and it's taken me a few years to learn that just pumping out mindless volume 4-5 days a week isn't getting me stronger. A lot of it is coming down from Covid. I don't know if we'll see 15/50 5.7 anymore, but AAC at times has their FMJ 19/50, and their Vmax at 25/50.. Gatorz makes the current glasses I use, and I believe they have prescription. www.gatorz.com/ Let me know how you like the Tisas. I don't have one yet and would love to review it to compare to the other 5.7 guns.

[@THEBEARDEDTOOLGUY]

Hard to find any ammo even from MIDWAY

[@DinoNucci]

RoaR

[@BuffRANGE]

Fire and Brimstone!

[@Zhotsausage]

Bro can you please tell me where I can find an alignment rod for the 5.7 pistol. And what is the right size? My local gun store didn’t have one. And they told me 223 wasn’t the right size.

[@DerWaidmann_]

So was that blowout caused by ammo or the gun?

[@BuffRANGE]

More so a combo. Somewhat a safety Issue with the upper but maybe slightly thinner brass?

[@B.Schmidt-c9v]

I'd love to see a side by side comparison with SS197SR. I did a little googling and the Hornady Black costs noticeably more. At present I can buy a 500 rd. lot of SS197SR for only $285. I get the impression that the Hornady Black has marginally higher velocity, but a side by side test would clear that up.

[@BuffRANGE]

Effectively Ss197sr would need the 10-16” to get the terminal affect that we are getting out of the 5.2” barrel. Another option for you is AAC Vmax.

[@justhereforthalolz]

AR DOWN! AR DOWN! *sadface*. Looks like it's time to wait on getting a top loader style until the OOB protection from one of the manufacturers proves itself. Tested a friends 5.7 banshee with them after seeing this, used an emptied case with just a live primer, held the bolt open at numerous distances while pulling trigger..... no OOB ignition, our emptied case w/live primer lived to see another day. Saw a few more videos on OOB with the P90 style AR uppers, notably Ian had similar issues with neck separation. IMO it's a combination of 2 problems. 1st, the ammo case itself is obviously a problem, it shouldnt be separating but 2nd the P90 style uppers (all manufacturers it seems) are not protecting against OOB problems at all let alone adequately or even a little bit. This assumption based solely on research as I dont have one to test yet using the same method we used on a banshee and my own M&P 5.7 handgun (beautiful gun, mine has the safety).

[@fomerbu]

Did it hurt the gun?

[@BuffRANGE]

It took some chips out of the aluminum rails so it's down and out.

[@DOCKent-3339]

Jarvis is not replacing his tools/bits in a timely fashion. As a result the cuts are sloppy and it gets nasty dirty when suppressed. I am unable to recommend.

[@BuffRANGE]

Do you have one ? I need to re-test some other rounds, but something is amiss.

[@shaun536]

Buff swap it to an efk barrel. I stared with Jarvis and never had any good luck with accuracy, so I switched it out to an efk. I probably put close to 10k rounds through the efk, and it still performs flawlessly.

[@DOCKent-3339]

Jarvis gave me a real short "refund" which I applied to the EFK. This cleaned up the dirty carbon mess the ill cut Jarvis caused.

[@BuffRANGE]

@@DOCKent-3339 I'll let you know.

[@teampyle9835]

I have personally seen the AR5.7 do that to a friend.... I think the p90 style mags are awful. They seem to malfunction more than others but particularly there's some chambering issues with the AR5.7

[@BuffRANGE]

It's generally because the feed angle must be 100% correct because there's no feed ramp.

[@randomfist797]

Multiple case neck separations? Totally unacceptable and Hornady should go back to the drawing board with these rounds.

[@BLACKRIFLEREVIEWS]

outstanding

[@jondavidmcnabb]

Good Lord you got lucky!!! Thank God you were wearing gloves and eye-pro. P.S. We can't afford to lose the national treasure, which is your channel, due to a out of battery explosion.

[@BuffRANGE]

Right!!

[@truckspecialties34]

Another great video. Is there a consensus of which ammo is most accurate?

[@mikehaynes8647]

I have had nothing but trouble out of "slick" ammo. My sample size is small, two different times. One with a S&W 5.7 and one with a Sig P322. I usually load my mags two or three days before I go to the range. I wonder if that is a bad practice with "slick" ammo?

[@thatoneguy454c]

5.7 is cool and all, but its just not for me. Its just such an underwhelming round. If i want a suer fast handgun round ill just go with the light bullet 9mm options. Especially with the shellshock brass making it safe to run at super +p+. Also that OBD was nuts.

[@Calqid]

Because a like platform for 57 doesn’t exist, my wife uses Liberty Civil Defense 50whatever gr +p in her P365SAS and we are very confidently protected.

[@xxdizannyxx]

That's crazy, sorry you lost a firearm but glad ur ok

[@alfonsedente9679]

Always funny to see companys are still trying to make a 1 caliber or 1 gun solution for eeeevvvvreything.

[@Calqid]

I do. I go from subsonic to being able to safe my SBR AR, with petaling, expanding, and penetrating ammo out my LC Carbine. I hunt deer and defend my family with three 29 rd magazines that are less cumbersome than my G40 with one magazine. Why is it so funny to be flexible?

[@brandonevans9521]

How do you have that ARMS mounted on your p90? I’d love to get one on mine. Running aems or prisms on almost everything these days except a few lpvo’s and actual scoped precision stuff

[@BryanWiedeman]

COMBAT...LOL

[@BryanWiedeman]

great vid..cheers from the Free State of Eastern Oregon

[@380master9]

What is more powerful around your testing or a 380 Liberty civil defense going 1600 FPS or a 380 HST?

[@KINGPOLO4ch]

What’s the name of compensator on that PSA ROCK 😮

[@BuffRANGE]

Eden Perfection :)

[@AdrenalineTheory]

What do you consider to be the most reliable ammo option when it comes to 5.7?

[@TheGseriesFAL]

Great video. I won't be buying any Hornady 5.7 ammo after seeing that Kaboom.

[@BuffRANGE]

I would say most of the blame is on the BCG of the upper.

[@shaun536]

​@BuffRANGE I know from experiencing the same issue with the original AR57 that at least in my case the barrel being out of spec plus the bolt able to allow it to still fire was definitely part of the equation. But can we truly claim at this moment that the ammo case wall being so thin also did not have any play in the kb? I ask this considering that you did have case separations in one of the other styled 5.7 firearms.

[@Maniac742]

What caused the case neck separation? I've seen that during reloading, but never with factory ammo.

[@BuffRANGE]

Hard to say without being some super dooper engineer? My guess is that the straight blowback action is more stressful on the brass and that's what causes it? Couple that with the fact that 5.7 brass is pretty thin to begin with.

[@Maniac742]

@@BuffRANGE True, but I've never seen a case separation with factory FN ammunition.

[@BuffRANGE]

@@Maniac742 I have. Ian at FW had it happen on his AR57. I had it happen on the P50 with SS198LF that KB! the gun

[@shaun536]

​@@Maniac742I have experienced it over the years multiple times with ss197 in all of my various 5.7 firearms. It is the only factory loads that I have had do this somewhat regularly.

[@ShastaBean]

@@shaun536 wow! 1st I've heard of that. When you say "all your 5.7 firearms"...Can you share what those are where you've had it happen?

[@MrProfchaos71]

Leave it to the Kel Tec 😂.

[@elsullo2]

Thank you for a very useful test of what seems to be the best commercial round yet! That is good pistol velocity, right?............................elsullo

[@BuffRANGE]

Yes. The pistol velocity is very good for a mass produced round.

[@andyx6248]

Did you have an extra pair of short? 😁 Glad you weren't hurt. You could have been blinded.

[@BuffRANGE]

It was quite the shocker!

[@menegene4129]

8:00 And that would be why we wear eyepro folks.....glad it wasn't as bad as it could've been.

[@Asset-Peak]

What’s The effective Range of 5.7x28 ? 300 ?

[@BuffRANGE]

I would say 150-200 yards tops

[@jorgesolis9468]

Depends what you consider effective range

[@ericshindler5829]

I am assuming my numbers on my lc carbine will be much higher. Thanks.

[@BuffRANGE]

Well at 30* warmer temps and some elevation sure :D What kind of climate to you live in?

[@ericshindler5829]

@@BuffRANGE Iin southern Pennsylvania near the Maryland border. Thnx also I wanted to know what ammo do you think has the best penetration out of 16 inch barrel?

[@BuffRANGE]

@@ericshindler5829 Best penetration as in deepest? Or the most terminally effective? Are you intending it for SD/PP/HD or hunting?

[@ericshindler5829]

@@BuffRANGE actually for home defense your thoughts…

[@domostructor147]

Where does this sit in your 5.7 ammo tier list?

[@BuffRANGE]

Above the AAC Vmax ONLY for the higher velocity, but that should be noted the jury is still out about it's reliability.

[@vincer8691]

Do you know what powder it is?

[@BuffRANGE]

Unfortunately no. Big time guys get custom mixed powder. They would have to tell us and I'm sure they won't.

[@chapowiththesticks]

Why that mag do that

[@BuffRANGE]

Blow up? Because the round didn't go all the way in the chamber, but the primer got set off. The unsupported brass blew up the gun.

[@basedyt6485]

You can't craft a "silk purse from a sow's ear". There ends the lesson!

[@KrugerrandFarms]

I would like a bolt action to fire this round . it's not better than a .22 mag but it is reloadable. case capacity is almost as large as a .22 hornet and with a locked breach it would be a lot safer to load for and use slower powders. Just a thought.

[@BuffRANGE]

lol it’s far superior to 22 mag. Pistol 5.7 velocities exceed the rifle velocities of 22 mag. Not to mention superior bullet choices and centerfire ;$

[@ShastaBean]

I've seen Jay/EA explain that we'll never see a locked-breech 5.7 because of how the pressure-curve creates too high of a pressure when the brass can't move (and is why there's lacquer). He said Savage tried, and scrapped it. I guess we'll see if he's right, but I sure wouldn't hold my breath for one. If there were to be another that might be legit better round, it' could be the .22 TCM? I don't know much about it...but I do have to wonder what held it back.

[@BuffRANGE]

@@ShastaBean There's a company who's making a bolt action single shot backpack/survival 5.7 gun so that assessment by Jay seems off..

[@ShastaBean]

@@BuffRANGE Oh? Interesting, for sure! thanks! Hopefully a success

[@macdawg7866]

What kind of comp did you say was on the rock?

[@BuffRANGE]

Eden Perfection > kzbin.infoT280iMRGohY?feature=share