7.62x39 vs 300 Blackout: Which one is Better?
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- เผยแพร่เมื่อ 15 ก.ค. 2024
- 300 Blackout and 7.62x39 are really similar calibers so which one should you choose? Get all the details about ballistics, magazines, ammo, price, and more!
0:00 Cartridge Dimensions
1:05 Ballistics Comparison
1:26 Uppers Comparison
1:46 Magazines
2:56 300 BLK Compatibility
3:33 7.62x39 Compatibility
4:03 Cost
4:24 Which One Should You Choose?
6:27 More Information
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7.5" 300 Blackout Complete Upper: 272-
7.5" 7.62x39 Complete Upper: 330-
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Kind of amazing that a cartridge introduced in the 40s is still going head to head with the most modern cartridges.
Well the x39 introduced in 1943 i guess the 5.56 was invented about: '' In 1959 the .222 Special was renamed the .223 Remington'' Neither round is a spring chicken.
Not much to change until we get some plasma rifles or laser guns l0l
@@DTreatz handheld?
@@DTreatz in the 40 Watt Range.
A bunch of 100+ year old rifle cartridges are laughing at you ...
BOTH...... you choose BOTH!!
I got both 😁 Couldn’t be happier with my purchase!
Unless you are gunning suppress and don’t mind paying 4x more 7.62x39 all day.
That’s a myth. 300 blackout is just as affordable. Nothing wrong with the 7.62x39, but 300 is the way to go now
@@Theworkerman7 where are you shopping?
@@open_minded_1 every gun shop, sporting goods store, and a few local gas stations/truck stops…
Mine suppresses just fine no problem suppressing 7.62x39.
@@CountryboyBOB mine too but it’s not subsonic. There’s not a good reliable 7.62x39 sub round that cycles through most semiautomatics. And now 300 BO supersonic rounds are about the same price as 7.62x39….with a lot more bullet choices.
Got both, I haven't shot my 300 in a year it's just pretty.... The 7.62x39(s) get play time regularly.
Not sure how much it matters but don’t forget that 300blk uses pistol powder so you get a complete powder burn out of a much shorter barrel than 7.62x39. For me that means I can run a shorter barrel, a more compact (lighter) firearm and still have solid performance.
fwiw, this was and is mostly marketing. alot of powders that work well in 300blk also work well in 7.62x39.
Doesn't matter. Sub sonic is still only 1000fps and 300-500 ft/lbs of energy. Full power loads 7.62x39 is faster and has more energy.
@@VG-913 this is true
@@VG-913 my only (granted it is imagined atm) is the bolt face wasnt exactly designed for the 762 case head. allegedly this leads to failure. at the same time, this is like comparing 9mm to 40sw. one has more power, but they are close enough to compare. if your blk cant do it, chances are your 7.62x39 wont either and you just need more gun.
@@Sageofthe16 it makes the edges of the bolt face thinner but ultimately it doesn't mean it's going to fail. 300blk is actually much worse than 7.62x39 ballistically... take everything bad you've heard about 7.62x39 minus it being corrosive/dirty then imagine it being even worse than what you've heard... that's 300blk
For me caliber choices are easy, I always go with the one that's been around for years and where ammo is available and relatively cheap. There may be benefits to some of the newer rounds, but I don't do anything that requires those marginal improvements.
.300 Blackout is only eating the con of higher pricing.
Eventually that'll go down... (hopefully)
.300 Blackout so cool, and makes the AR even more versatile.
IF you can, get both lmao.
I have two of the BCA 7.62x39 uppers, all I can say is : yes!
What buffer spring and weights work for you i would like to build one?
@@fred7710 the standard carbine spring and buffer are working for me. Smooth running.
@@danielboydcooper6850 may I ask what length barrel
@@fred7710 16"
Okay man thank you I appreciate it
Great explanation i could follow everything you were saying thank you and you didnt over explain and confuse me. Great video!
The price difference is what pushed me to 7.62X39 over 300blk.
I have a Robinson Armament XCR-L kits for both 5.56 and 7.62X39. It was a pain to get the right 7.62X39 mags. C Products Defense seems to the best quality, however ASC has stepped up their manufacturing over the last 5 years.
Even brass 7.62X39 is more affordable then 300blk. I've been using S&B. I do want to get the Hornady SST for Defense.
must be from canada. until i read defense
The steel cased sp ammo is quite effective, and much cheaper than hornady, I used a 125gr barnaul sp to take a deer this year, had great performance, it did shed the jacket but the core penetrated from the front chest to the back of the ribcage and retained 80gr of weight, it may have not shed the jacket if it hadn't struck the bottom of the spine on the way in, overall I was very impressed and the deer was dead on the spot.
In my experience Duramag makes the best 7.62 AR mags.
Just Got 7.62x39 in 10.5” with side charging and couldn’t be happier
Me too.
I’ve got a 7.62x39 in 16in and 10.5in and I’ve got 300Blk in 16in and 8.5in love all 4 of em!!!
I like to hunt whitetail. I replaced my 99 year old Marlin Model 93 in 30-30 with a 10.5” 300blk. I finished the build about a year ago. I haven’t been deer hunting in 22 years. Last year was suppose to be my re-entry into deer hunting but covid severely limited my already severely limited hunting areas. I’ve only got to shoot 10 rounds from the 300blk and that was about a month ago. Installed a brace, a Kaw Valley Mach3 linear comp, and a Vortex Strike Eagle 1x6. Sweet shooter! However, I won’t be hunting this season either… it is what it is. Here’s to next season!
Pretty sure I got my 7.62 and Grendel on the same purchase. I love bear creek.
Had my 10.5” 300blk from you guys for nearly 2 years. (Got it sub $200) The only issue I’ve had with it was the burrs on the feed ramps. That was resolved by polishing it. Still eats anything I put through it.
Thanks !
I have a bear creek 10.5 barrel and love .300 blk. Out all the way
Bless You
And Your Business
I could not decide so i got both. So now i am waiting on you to make my 450 bushmaster in a 16 inch stainless barrel...ammo for 300 blk is pretty high. No doubt.
Why not both, I bought both from you guys and they both run beautifully
If Tulammo moves to US.. .300 blackout tulammo please!
Love my Gen2 Side Charge 350legend. Runs flawless and cloverleaf’s almost everything
Good to know, I have been eyeing a 350 Legend and wanted to hear some feedback by an owner. Thanks.
@@greybeard277 I had one in a Ruger American ranch. Gave it to my 10 yr old nephew for a soft shooting deer/hog gun. But since I 350 is the most readily available ammo I see at places like Walmart I had been stockpiling some even though I no longer had one. I gave the BCA a try and love it. It’s the first upper I own that I didn’t personally build, but I couldn’t build it that cheap!!! I’m thinking of doing a TH-cam review and demo of accuracy..
762x39 is better
and its even better running in a Ak 47
300 blackout rtw! Lol I just love it so much fun and easy to change from 5.56 I just have an extra 300 blk upper I put on my ar lower . It really is just quick and easy but yes a lot more expensive to shoot.
Reloading 300blk is easier with better bullet selection
When I first bought the 76.2 upper I just used a Magpul 30 round 55.6 mag and it worked fine.. Can only put 8 or so bullets in but it shoots.. I got a 10 and 30 round ASC mags that work fine
Sir, to add on the description of the .300 ACC; the reason why the cartridge is smaller than the .556, is because it (.300 ACC) uses pistols powder instead of rifle powder. Very ingenious if you ask me.
7.62x39 for me.
Only thing I’ve gotten from BCA that DIDNT work was the Mag on my 7.62. I bought two and neither would feed. Got a different manufacturer and the rifle runs like a GEM. Im DEFINITELY gonna get that short upper in 7.62
doing a 7.62x39 ar build ...good shit
Both I chose both!!!
I've built a 762AR and actually found mags that needed just a little bit of work.
Then I found the "MutliMags". May only hold 28 rounds but haven't failed me yet.
Faxon made a 20" 762 by 39 and a 20" 300 blackout barrel I have a 20" 300 blackout barrel for the arak21
Do videos like this but with direct comparisons between the two rounds. It doesn’t even have to be ballistic gel just put a piece of ham or pork loin, also do drywall testing. Do different calibers (9mm, 5.56, 7.62) using different popular barrel lengths to see the differences in effectiveness of the rounds versus meat. It’ll help us make decisions like, I want a short AR, but 5.56 out of a 7.5 in barrel is basically just a flash bang with garbage terminal ballistics. 11.5 is viable for 5.56, but too long. Maybe I should go with a 9mm JHP if I need a really short AR. And with the testing we’d see the 9mm JHP outperform the 5.56 out of a 7.5in barrel.
I have them both in rifle. I have the 300 blackout in pistol planning on getting the 7.62x39 in pistol shortly
I went 7.62x39 for the simple fact I already have ammo for my SKS.
According to what i have read and it makes sense, the 300 blackout bolt is more durable in design than is the 7.62x39 bolt when fitted into a standard AR15 bolt carrier. Particularly the extractor in the BCA bolt various people have claimed that it breaks prematurely. I have order a replacement bolt with modified extractor from Young and will see how well it works. But it now seems that 300 blackout chambered AR15 are more reliable for SD.
The x39 has had more metal remove from the bolt head and also from the extracter to allow the larger case head of the 7.62x39 to properly fit the bolt recess and extractor claw.
I HAD TO STOP BUYING BCA.... ITS JUST TOO ADDICTING BEING ABLE TO BUILD WHATEVER YOU WANT. THANK YOU ALL FOR THE SERVICE YOU PROVIDE.
Daniel, I am a disabled vet, been out of the shooting genre since 2006. I have to purchase my first. I was raised with the M14/308. I have been jaded and I am biased. I have been researching for four years now. I always end up back at Bear Creek Arsenal. On a budget, I'm starting to build my collection once again, taking classes at Sonoran Desert Institute in mind, where should I start for my first build? Been asking the most knowledgeable, thank you.
300 blackout is a great round for subsonic loads. Only plus I see.
A pcc in 45 > 300blk. Don't need special ammo and 45 is cheaper. Plus a 45 can fits multiple other calibers
@@VG-913 The ability to switch between sub and supesonic is the key though. I can use my .300 BO for hunting medium game at medium distances. People knock .300 BO the same way some people knock buying a Daniel Defence or a LWRC AR. They don't know enough about the products to fully respect the price.
@@WillysOverland it's trash super sonic even worse than 7.62x39 and doesn't really have much more performance than subsonic 7.62. If you have a can on your 7.62x39 gun then you can do the same.for cheaper. 300blk is over.hyped
@@VG-913 Trash? You really need to grow up a little. Hyped? It has not been "hyped" for more then 5 years.
@@VG-913 lmao how is it trash? It’s easily the one of the quietest subsonic Cali era and it still lacks a punch in qcb.
I'm absolutely going 300 blackout, Palmetto state Armory sells AAC ammo cheap I get 110 vmax and 125 fmj for $11 a box .
The C-Products Duramags for 7.62x39 I found to be the best.
They've been pretty reliable for me, although I stick to 20's and 10's. The cheap 30's are only for range use.
With the Russian import ban, I went 300blk 10.5 in. Figure it would be a sweet deer/hog gun and home defense
150gr Triple shock and use a magnum primers for all whether
🔥🔥🔥
It's the shape of the 7.62 × 39. Not the length or the diameter it's a v shape that causes the Goofy AK mags
Yep, the casings are tapered.
For me the price of ammo and availability. So 7.62x39.
7.62 because I can afford it
7.62x39. Don’t see a point in 300blk. Other than suppressed
Waiting on my 300blk upper with the side charged bear claw barrel to come in next week! The 7.62x39 is hard to find in copper here in CA and since I'm building this set up for hunting purposes, the 300blk will be easier to find in copper.
solid copper projectiles? lol. do the lawmakers understand where the lead came from to begin with?
@@Sageofthe16 ask California that question 🤣
@@jimvang6012 i decided to move to tx so i dont have to....
I use the 7.62x39 we could use some after market support for magazines but as far as the 7.62x39 I've always used the enhanced firing pin never had any issue other than crap mags not feeding. Also the case size on the 300BO is too small and can't get the powder to reach proper pressures this means even 125 grain will never reach a velocity above 2500fps you'll be lucky to hit 2400fps consistently the 7.62x39 has a wider case and can fit more powder in the case. Plus it's way damn cheaper!
The powder can definitely make pressure in a blackout. 65kpsi and higher is not a problem. The problem is a lack of gas VOLUME that limits max velocity. You've got half the powder capacity of a 308 and you're well over half the velocity, stop complaining. The 7.62*39 in the standard AR is handicapped by a lower safe max operating pressure but uses a fairly similar powder charge as a BO.
I have both.Heck I've got 5 different AR15 in 300 Blk Out from pistol length 8inch barrel.to 16 inch thaI built.I used to not be real high on the 300 BO until I got a couple suppressors.I ki da like it now.
However I really like my 7.62x39.
I bought a complete upper from BEAR CREEK ARMS = AND IT IS A TACK DRIVER..I couldn't believe how accurate it is with the cheap spam can ammo kandy the cheap Wolf and Tula I shoot I've got to gi e a thumbs up on the 7.62x39 because of ammo prices. It seems to have a better Thump on the hogs to me.The 300 BO suppressed Is a killer though.But damn the 12 inch drop at 50 yards from 150 grain Frontier ammoto the 225 grain Fiocchi ammo was a surprise to me.
I can't in knock either round.
I've had good luck with my 7 BCA barrels.. All except one in 223 Wylde.The crown had a "V" in it like it was dropped on something.I couldn't figure out why it shot so bad until I removed the Flash Hider. I was about to return it.But when I put on a SilencerCo ASR and Suppressor it shoots lights out.
Make a 26” 28” 30” upper in 762 x54r please
Bca is one of the greatest gun manufacturers. I hope the TH-cam side blows up for you all. Classic firearms are greedy, lying backstabbers.
I have a 308 side charger and it's one of if not my favorite gun in my collection. I think a 556 or 762 will be next:) God bless America!
Grendel you won’t confuse or chamber with .556
Ikr. Best round out there for ars
7.62x39 uses the same bolt carrier as a 5.56 AR. Different bolt
I think .300 blackout and 5.56 ar the same
Same bolt just machined to accept the lager casing.
@@bmrz38 that is what makes it a different bolt.
@@aurelioesparza9142 the actual carrier is the same but the bolt is going to be different for the x39
Seeing the 7.62 x39 upper you guys just sent out to me bypassed the quality assurance process. With lack of people in the customer service department blemished or not fit for service should be the type of videos y'all should be putting out.
I that it shares clips with 223. And how it works with a can.
But your testing needs a part two since the 7.62x39 uses a longer barrel and up to 400 yards. You need to test the 300bo with a 16" out to 400 yards
To me both are good
throw a. opper case on the 7.62x39 and the are a lot more accurate. the 8.6 blackout won me over though.
Or 300 win mag upper can u start selling those or 40s&w 45acp 10mm that be awesome
300 BLK is now same cost as 39mm due to the war and no more rooski ammo .
Just about the same cost, which sucks. I have an x39 and 300.
I just got a .223 wylde complete upper from you guys and I'm not really allowed to hunt with an AR in this state so that's probably all I'll ever need. But maybe getting a 300 barrel for suppression shooting at a later date could be fun, idk. Will let you know how it performs when I can afford a range trip. (Spent more than I should have to get everything else I needed, but still barely over 400 for the full gun, iron sights, 3 mags, and a laser bore for later).
Man that sucks , I deer and hog hunt with Ar15 all year this year , no mag restrictions nothing , killed all my deer in gun season with 223/556 , 5 this year , the rest during bow season but that blows ass you can hunt with Ar15 I'm in Georgia by the way
@3%'er red-blooded patriot used to be Michigan (where I lived until the tail end of 2019) allowed ar hunting for deer (the one thing the last household I was in hunted religiously because we had crop damage permits from a local dairy farmer), but they apparently changed it not long after I left for ohio... I know because I asked the dude I used to live with about it and he had sold off his AR, because of that. That gun was the first thing I got a kill with (I hunted once before that but the scope on the gun I was using was apparently busted so I couldn't hit shit). Didn't get to do a lot of hunting myself overall, but I helped skin and quarter, and sometimes aided in some of the other processing for our nearly year round wild deer farming. We also gave a ton of our meat away to locals for different reasons. The guy just really loved to hunt, and it was one of few things he could do after a major work injury took him out of the work force for the rest of his life.
You left some important facts out. The 7.62x39 is a tapered case and that is why longer magazines must be curved. It also has a larger case diameter. Most important is that the AR-15 bolt is marginal relative to durability when firing the 7.62x39. It really needs a bolt more like that of the AR-10 like what CMMG uses for their 7.62x39. But my BCA upper a few years ago was under $200 and so it is cheaper just to keep a spare bolt and extractor. I have a store of X39 ammo and so it pays to have an AR upper to fire it.
My BCA upper is way overgassed and so it was necessary to change out the buffer wts to H3. That changed the ejection pattern from like 2 o'clock to 4-5 o'clock and all magazine types would work. This should also increase the longevity of the extractors.
Most x39 ammo is not intended for hunting. More load variety in 300 blackout relative to projectile types needed for hunting.
Well I chose both 🇺🇸💪🏼
Should be here Monday next stop 6.5 creedmoor last month was 6.5 grendel like Pokémon for men gotta catch em all
I reload 300 blackout with polymer tipped 110gr, max charge under 30 cents per. And out of a qm16 inch barrel it's hitting 2375 fps, that's just under 1400 ft pounds. Harder then 762x39. And it's frangible. Leaves a 14"x5" hole in meat. Owwwieeeee
c products 7.62x39 mags work best for this application. in the AR 15 platform. If you're going to use steel case ammo get the enhanced firing pin in all AR 15 platforms. a stronger hammer spring is also a good idea. this will aid in light primer strikes. This is from experience. I have 6 AR 15s and all shoot brass and steel case ammo. All are BCA uppers.
For the AR15 platform the 300bo is the way to go
Since the .300 BO is made off of the .556, and uses all the same BCG, it can be chambered into a .556 chamber, since the case has been cut back. This can ruin your day, because that projectile won't fit down that barrel. So, you have created a bomb that is inches from your face. It would be very easy to pick up the wrong magazine, or get a .300 BO cartridge mixed in with .556's.
If you are shooting both calibers, make certain that those don't get mixed. Accidents can happen, so for safety I'd opt for the 7.62x39. You can't get those mixed up with .556.
This. My family is usually pretty savvy but someone, just once, goofed and was about to shoot .270 out of a 30-06. Wouldn't have caused a major problem but thinking about someone accidentally putting a BO in a 5.56 has kept me away. It's too easy to avoid that potential issue entirely.
@@randomidiot8142
Exactly. If I want similar ballistics, I can go to 7.62x 39.
AK15 is a good gun to have.
AR47 is a good gun to have.
AK is more powerful but in a Suburban situation, the 300 is more practical and better protection without over penetration
You just described why I went with 300blk to replace my 99 year old Marlin Model 93 in 30-30 for whitetail.
Do y'all still have any of those old hand guards? Those are the ones i like
The 2 cartridges perform pretty close to each other. Where one edges one out in some areas, the other performs better in other areas.
The big advantage to .300 AAC is its compatability with the AR Platform. It also comes in a wider choice of projectile weights and types. Its biggest disadvantage is cost of ammunition, as .300 AAC typically 2-21/2 times more expensive that 7.62 x 39.
Personally, I prefer .300 AAC, and the reason why is I have a couple of buddies that have the Soviet Uppers and magazines to use on their lowers. Both have feed/ejection issues occasionally, just enough to cause me to hesitate to go that route. It might be their ammo, it might be their uppers, it might be their magazines. I don't know, and it doesn't happen everytime we go shooting, but on occassion one or the other will have some issues. I lean more towards the ammo being the culprit as both buy the cheapest steel cased surplus they can find.
I would also point out, if you compare the price of "reloadable brass cased, boxer primed" 7.62 X 39 to .300 BO, that price difference narrows considerably and to get JSPs or OTMs the percentage narrows considerably to where .300 BO is only 10-30 % more, depending upon manufacturer.
I don't use steel cased ammo because I reload, and like working up perfect loads to achieve consistent accuracy, performance and reliability for every gun I own and load for.
Please make a 300 Ham’r!!!
300blk. Much better round to handload for
What's the wear & tear comparing an AK barrel & BCA's AR-15 7.62×39 barrel using steel cased ammunition?
Colt made a gun lower that could adjust from 5.56 to 308 with upper swap and buffer change. For the life of me, I can't figure out why some one has created a gun that can do the same with 300 B.O. to 308 with just and adjustment to the lower mag well.
Shop local guys. I love close and enjoy what I have purchased from them
Since I own a BCA right charge 7.62x39 16in upper... I like it.
2/4/23 Just DO NOT USE lacquer coated steel ammo without lubrication, lithium grease, or red high temp grease... breaks the ejector.
I think the curved magazine is necessary because the 7.62x39 case has a taper
Be nice if the barrel would’ve been compatible, and muzzle.
7.62x39 is actually .310 diameter through a blackout is actually .308
I always like to say the difference is ones a precision round and one isn't. But imo handloading with better materials should fix that difference.
Ruger ARR, CZ 527, Howa mini will all shoot sub-moa w/ off-the-shelf 7.62x39 ammo, often with cheap steel imports, and considerably less than MOA with premium or hand loads.
@@c.j.rogers2422 well now we are talking bolt actions rifles. I was talking about your standard ak would shoot significantly better
Love you guys and have bought many of your uppers. Not sure why you made this video though the way yall did, since it was supposed to be an informative video. The way things where discussed seemed more like some one talking about it and not feeling confident in what they where talking about. in the video phrases like, I think, or I could be wrong, or I dont know was said in this video. Do the research like other youtubers and speak more confident. :) Love your uppers.
When are you getting more 16 inch right side charging 7.62 uppers in stock?
Can the 762 upper be used on the psa ks47 lower that take Ak mags???? need to know!!!
suppressed 300 blackout same muzzle energy as 45 and zastava doesn't make a Ak pistol in 300 and my m92 probably my favorite gun 😉 although I always wanted one way to expensive on the ammo prices
7.62x39 all day long.
Or you could just buy both:) uppers under $300 just sayin.
the one that doesn't get you killed
I have a 300blk and a 7.62 and havnt shot any of them :/ moved to the city 🤦🏻♂️
350legend-- affordable - accurate-- hits a TON ! Lots of bullet choices , available ,
The ruger mini 30 mag are 20 rounds and they are straight like AR mag... Ruger must got it right ✅ thank me later. 😉
Both great rounds. 300 blk has a large bullet/round (147, 150). Lean towards 300 blk.
They make 154gr 7.62x39 cheaper and better ballistics.
There are 7.62x39 rounds larger than 150.
@@mtdusmc9437 I was just comparing to what he had mentioned they make subs that are like 190 or something
@@VG-913 Sorry about messing up the thread. I was responding to the original poster.
@@mtdusmc9437 all good. Also he mentions bullet/ round. 7.62x39 isn't .308 caliber projectile. They range from .309 all the way to .314
Currently a thousand rounds of 300blkout is only $80 more than a thousand rounds of x39 ammo.
A 7.62x39 20" or 22" heavy barrel would be nice! Hint hints! 😁
That would actually degrade the performance of the round.
@@mtdusmc9437 interesting, on bolt rifles it keeps gaining up to about 23" and then starts slowing down at 24". Figured 20 or 22 would still be good in semiauto. Learn something new.
@@mtdusmc9437At that length, I'm a pickin' 'n a Grendelin'!!!!😉😎🤠
I've got a 20" .308 planned for a 7.62*39 when my reamer gets here in a couple months. Should be fun to pull out and watch people go whaaaaa.... when they see the ammo 😁
@@mtdusmc9437 Actually the best barrel length for 7.62X39 is 20.5 inches. (Burns powder completely.)
Define "better", and for what job, and at what distances?.
I’d love to get a Lefty 7.62x39 upper!!!! Make one and I’ll buy it!!!!! Hint, hint, hint!!!!!!!
It’s got to be a pistol upper!!!!!!
Are y'all still doin an MOA guarantee on y'all's uppers and barrels?
We expect all our barrels 16" or longer to achieve a 1" MOA with appropriate ammo and shooting techniques. We also will assist and replace any barrels that don't meet that standard