Quick Tip: .300 Blackout vs 7.62x39
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- Опубликовано: 6 авг 2024
- Brownells Firearm Support Technician Caleb Savant compares the 7.62x39mm and .300 AAC Blackout (aka 300 BLK) rifle cartridges. Both rounds are similar in size, and when loaded with similar-weight bullets, their ballistic performance is almost identical. So what's the difference? The Russian 7.62x39 operates very reliably in the AK-47 platform, which was designed around it. Later, attempts were made to chamber an AR-15 in 7.62x39 to get a .30 caliber AR in a compact package, but the taper of the 7.62x39 case doesn't mesh well with the AR-15's straight magazine well. A reliable 7.62x39 AR-15 CAN be built, with fairly extensive modifications to the rifle. The .300 Blackout round uses a necked-up 5.56 NATO / .223 Remington case, so a standard AR-15 can be converted to it simply by changing the barrel! Both cartridges also work well in bolt action rifles, so they make excellent short-range hunting rounds, too.
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Wasn’t the 7.63x39mm used in the SKS . . . well before the AK became the prominent Soviet block rifle?
I think Brownells forgot to fact check the "7.62x29" cartridge. And this video contributes nothing to the discussion. He didn't even mention the fact that Blackout has suppression advantages. That's probably it's strongest advantage platform aside.
@9mm Weiner it is not based at all off 8mm kurz...
@@mrfurious93 there is an FMJ 196 gr subsonic 7.62x39 cartridge available under brown bear brand.
@@nmende00 I know, just talking in general.
@@nmende00 Yes sir. And they feed, you just have to have the correct magazine!
"7.62x29" I've never heard of that caliber.
Its the latest thing, only from brownells...
@@fruitfarmfords8243 LOL !!!!!
@@fruitfarmfords8243 LOL, good one
00:30
id like to know more about this 7.62x29 you speak of.
00:30
That was 7.62x35 not 29.
7.62x29? @0:33. My AR47 shoots fine, no feed issues with C-Products/Duramag magazines.
I believe 300 blackout is just the SAAMI designation of the 300 whisper cartridge by J.D. Jones and was primarily designed as a sub-sonic loading for break-action and bolt action rifles. then some company decided to go get it SAAMI spec'd so they could start chambering their guns in it.
Yep. People saw value in a 30 cal. Tale as old as time.
I built a few ARs and all the ones that shoot 7.62 I have seen have the same issue with primer strikes on steel ammo, this can be mitigated by an enhanced firing pin or a stronger hammer spring but that’s my .2
Correct. When I built my AR I used an enhanced firing pin and the Hiperfire trigger group with the 7.62X39 spring set and Duramags. There is no such thing as a light primer strike. After 2000 rounds everything is still running smooth.
Just a heads up
.2 is 20 cents.
.02 is 2 cents.
@@OGbqze my bad
0:13 "7.62X29" "Now with that being said..."
I love Brownells. Thanks for the free video. So many negative nancies in the comments.
For official company to throw out a video like this wow they should fact check their videos
Can not unsee the creases on his shirt
fresh out the package creases
That you Mom?
It seams as if the reliable feeding issues on the AR platform of the 7.62x39 round have been for the most part worked out. (better magazines and enhanced firing pin profiles)
As far as availability and cost the 7.62x39 wins hands down.
My last build was a 7.62x39 side charging AR based on ammo availability and cost alone.
Thank you for the video. Please continue doing caliber comparisons.
You're joking right? I don't see a sarcasm /s.
minameise I’m not joking, I’m not being sarcastic. I liked the video and I want more caliber comparisons.
Wrong, the 7.62x39 was NOT designed around the AK platform. The first gun it was chambered in was the RPD followed by the SKS. What made me laugh was the true fudd line "You should keep these cartridges in the right platforms they were designed for" then goes and says you can get a bolt gun chambered in them. Smh. Why not really compare the two and say that 7.62×39 actually has a much higher velocity than 300 blackout, Just not as many options for reloading? Go to Iraqveteran8888 for a real comparison.
But rpd us still an ak variant
Price comparison?
With that being said x5 🌝
Imagine somebody building an AK in 300 AAC Blackout that would be the ultimate troll😅
Hi .first I like vide👍👍👍👍
Can I use 300 blackout caliber for my Windham Weaponry 7.62x39?
Thanks 👍
No you can’t. The diameter of the casing for the 300 blackout is the size of a .223 which means that it’s too small to fit on a bolt chambered for 7.62 x 39
In a 300 blackout ...is there any other ammo that will work ...like you can use 38 special ammo .... in 357s guns ....can’t find 300 blackout ammo...
Look at gorilla ammo. If you buy in bulk, you can find it even now.
Aside from the Brownell's embroidery, he looks like a prisoner at Shawshank prison circa 1950......
Was this video made in 1978?
What was that all about?
Well, this one's shiny and this one's grey.
This one is bigger around at the bottom.
How is this a quick tip?
So you can shoot a 7.62 39mm bullet out of a 300 blackout ar gun?
No
The 7.62x39 bullet diameter is just slightly too large, the cartridge body is too large, and the case head is too large. If you even manage to fit it in a .300 blackout gun, you’re likely to blow it up due to the bolt being unable to fully close or the barrel becoming obstructed by the too-large bullet.
The 7.62 x 39 should be compared to the 300 Ham’r. 7.62 x 39 isn’t sub-sonic, so 300 blackout should be in the sub machine gun, SBR , QCB class.
Don't have a second camera it is not necessary and looks stupid when the person is not talking to the camera. Saves time in editing too, right ?
00:30 Uhhhh... Really?
🤣 last minute wardrobe prep...oops I forgot to wear my logo’d shirt....no worries, we have extras, fresh from the package -See horizontal fold line from packaging.
7.62 x 39 is not design for AK platform. 7.62x39 designed earlier that AK rifle. AK platform design to run 7.62 x 39.
That cartridge to platform is just a myth.
I've shot plenty of cross over veriations and they all shot well.
One of the best ones was a 7.62x39 in AR platform one was a standard AR mag and the other was made for AK mags. Both shot well but if I would buy one it would be the ak mag version just because availability of cheap ak mags
Jimmie Burleigh Many people just don’t like an AR style rifle without a last shot bolt hold-open. I am one of em.
@@ryanliu2600
You get what you pay for but those two did hold open and a lot of those that don't will with a simple mag guide change
Jimmie Burleigh I am pretty sure the AR that uses standard AK mag does not have a bolt catch. If urs does, plz tell me what the manufacture is.
@@ryanliu2600
You change the feed guide in the magazine. I think if I remember right you loose 1 round.
Can't remember off hand who makes it because it's been a while sense I fooled around with those.
@9mm Weiner
It's all opinion they all shot fine
I shot my sheriff buddies AK in 5.56 a lot and it was flawless.
And a 7.62 39 is still tapered lol its just not as pronounced.
2:00 - in that case you'd need an SKS...
Compare 300 blackout vs 545 please! What better?
Bruh
there is nothing to compare. it's like comparing a street bike to a 4x4 truck. they are completely different and serve different purposes.
Who the hell is this? Wheres Paul levy??
It's easy for me the 300 blackout.
Holly Slicks lol wish my guns were that lubed all the time
Marines should use the 300blk over the 5.56
300blk has more fps and enough range to be effective like the Ak's 7.62 👍👍
With that being said...
Need to do more research
And that being said...
what is the felt recoil difference between 7.62x51 and .308?
No, just no. there is no difference because that one is actually the same cartridge, one the NATO name, the other the domestic name. unlike .223, which was a new varmint round that got pressed into service and ended up with two slightly different specifications for it.
@@sinisterthoughts2896 Higher PSI in civilian .308 round. They are not the same.
Wtf? 7.62x39 AR's are fine
7.62x39 was used in the SKS before the AK
Your comparison was saying"they're kinda the same".
I made this level of vid when I was 14
You forgot black bear
Nonsense the 7.62x39 will work great in the AR15!
Took 20 years for me to learn how to make it reliable with cheap ammo. Needs a slightly longer firing pin. Adjusting the feed ramps helped a bit, too. And, it took lots of tweaks to get the mags right. But, yes. Now, it is cheap and reliable.
@@dus777 exactly
@@dus777 I've got a dirt cheap 7.62x39 AR kit build. Other than the fact it doesn't like soft points it works great. Three of my friends bought similar kits after firing mine. No problems with any of them. I wouldn't use it for defense but it is one of my favorite hunting/plinking rifles.
New to all of this but this convo is why I’m here. So without a doubt.. i can fire the 7.62x39 rounds in my 300 blackout? If there’s specifics of my rifle i need to add please let me know
@@mattkinnard9934 no sir. The 7.62x39 requires a different barrel and bolt than 300 Blackout.
This is the first Brownells Video I will be thumbs downing. Thank you for your uninformative contribution.
No shit! That was a joke. I learned not a damn thing.👎
Agreed.
With that being said.........
Nah 7.62x39 is pure reliability
Vz 58 time
Sweet boy is either one of ours or an extremely homeschooled cultist.
Cult from 1962.
The platform matters. I would never get a 7.62 AR now would I consider an AK in 5.56. These platforms were designed that way for a reason.
What about a galil?
The USA marines need the 300blk to be more affective in fps like the Ak-47 👍👍
the .300 and the 7.62x39 are both slower than 5.56. inferior "fps".
0:30 29???😂
Some angry ❄❄❄ in this comment section
When you said you were not going to say much you ment it... disappointing video
Find something else to do dude. This ain’t for you.
Cant stand the 300blkout dumbest caliber ever made I'll take my 7.62×39mm over the 300 allday everyday much more power with my 7.62×39mm accuracy isn't enough to change anything at their distances got some corbon 150gr Soft Point loads 2,300fps almost 1,800ft.lbs of energy 300 isn't touching that very accurate round
@9mm Weiner useless cartridge rather carry any 9mm 300blk out is a shit round to heavy not enough power to many other choices
@9mm Weiner LOL HAHAHAHA its a useless shit round take my banshee 10mm over any 300blk out rifle all day everyday
"and they take some pretty strange magazines..."
hyperbole much? manufacturers you sell, such as c-products and d&h industries, must be thrilled you just crapped all over their products. and here i thought we were over ignorant bias against the 7.62 ar platform.