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Link Posted: 10/29/2022 12:56:02 PM EDT
[#1]
They are BOTH obsolete with 8.6 BO.  And 8.6 BO will be obsolete with the .375 BO, which will then be obsolete with .458 BO, which will then be...
Link Posted: 10/29/2022 12:56:11 PM EDT
[#2]
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Quoted:
OP, the link you posted shows a test barrel length of 20".

7.62x39 will probably not be as quiet or effective as 300 Blackout in an 8" barrel.
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Wrong.  It should be just as efficient in short barrels.  AKs will be a bit louder though because of the gun, not the round.

ETA:  They always give those numbers out of pointlessly long barrels.
Link Posted: 10/29/2022 12:56:55 PM EDT
[#3]
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I wont be switching. Sharing same mags and BCG as 5.56 seals the deal.
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Yep. But I do keep dedicated 300blk marked mags to keep from there being any confusion as to what is loaded in a mag.
Link Posted: 10/29/2022 12:58:07 PM EDT
[#4]
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Half the people that own something in 300BO purchased it because it’s called 300BO. 7.62x39 Subs don’t change that.
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I purchased it because it gives me a 125 gr softpoint in an AR with an 10" barrel which  by the way, is marked "300AAC"  
Link Posted: 10/29/2022 1:00:10 PM EDT
[#5]
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Quoted:



I purchased it because it gives me a 125 gr softpoint in an AR with an 10" barrel which  by the way, is marked "300AAC"  
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Half the people that own something in 300BO purchased it because it’s called 300BO. 7.62x39 Subs don’t change that.



I purchased it because it gives me a 125 gr softpoint in an AR with an 10" barrel which  by the way, is marked "300AAC"  

TBH I think “AAC” has a better ring to it than “BO” (to be superficial for a moment)
Link Posted: 10/29/2022 1:06:25 PM EDT
[#6]
Quoted:
Check out these numbers.

IMO .300 BO is now obsolete.

https://www.hornady.com/ammunition/rifle/7.62x39-255-gr-sub-x-subsonic#!/
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No its not.
Link Posted: 10/29/2022 1:08:12 PM EDT
[#7]
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You have to be a special kind of ignorant to think this is remotely an issue for people with functioning brain cells.
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So in on this thread - much potential for rustled jimmies.
ETA:  looks like some are already rustled.


Also leads to the risk of kabooming.



You have to be a special kind of ignorant to think this is remotely an issue for people with functioning brain cells.

You'd be amazed how many different rounds feed and fit into a .30-06 chamber. Most are subcaliber, but 8mm Mauser could result in a very interesting day.

I store .308 and .300 Savage next to each other.
Link Posted: 10/29/2022 1:17:29 PM EDT
[#8]
It’s still too expensive, it would be sweet if PSA/AAC started making cheapish 7.62x39 subs.
Link Posted: 10/29/2022 1:19:11 PM EDT
[#9]
IMO, your opinion is wrong

Those two rounds, while similar in performance, fill two different niches
Link Posted: 10/29/2022 1:19:32 PM EDT
[#10]
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Quoted:

Stupid argument that only affects stupid people.


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Well we do need Darwin Award candidates
Link Posted: 10/29/2022 1:20:31 PM EDT
[#11]
I can't shoot 300BO subsonic. The bullets bounce off the ground and go whizzing off dangerously. I could shoot supersonic only but why bother.
Link Posted: 10/29/2022 1:22:49 PM EDT
[#12]
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I wont be switching. Sharing same mags and BCG as 5.56 seals the deal.
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This. OP is dead wrong. It wasn’t a fad when it came out and it’s not going anywhere now
Link Posted: 10/29/2022 1:24:51 PM EDT
[#13]
Obsolete?

It occurs to me that people here often sort of misuse the term "obsolete."

As it relates to firearms and ammunition, and weapons in general, it essentially means "no longer useful." It does not mean that something is now on the market which might be slightly better.

Flintlock muskets are obsolete on the modern battlefield. If you were in a modern war and a thousand men showed up equipped to fight the American Revolution, your best use of them would be to have them loading and unloading trucks or digging trenches. They would be pretty much worthless fighting against APCs and modern infantry.

You can pretty much say the same thing about bolt action rifles. If 1,000 men with SMLEs fought 1,000 men with M-16s and assuming roughly equal training and leadership, the M-16 equipped troops would win every time. Thus bolt action rifles are obsolete for the battlefield. (Outside of some roles like being a sniper... maybe)

But, for hunting a bolt action rifle is not obsolete. Assuming there were 1,000 hunters with auto loaders and 1,000 hunters with bolt action rifles, who do you think would manage to take the most deer? (Given that they follow standard game laws.) It probably wouldn't matter much, so therefore the bolt action rifle is not obsolete for this purpose.

Is a Glock better than an M9? Maybe. But apply that same rule to home defense situations. Do you think that the homeowner armed with the M9 would come out significantly worse than the ones armed with Glock 19s? Probably not. Thus the M9 is not obsolete.

And while that 7.62x39 subsonic ammo might be better in some respects to the .300 Blackout, how does that make the .300 Blackout useless? As near as I can tell the biggest use for the .300 Blackout is to have a range toy... not that there's anything wrong with that. I can say the same thing about the .45 colt firearms I have, range toys are good. But does the presence of the 7.62x39 cartridge reduce the fun level of shooting the .300 Blackout suppressed? Has science shown that it generates 30% more funs per squeeze?

Yea, it's not obsolete.
Link Posted: 10/29/2022 1:28:47 PM EDT
[#14]
All .30 caliber rounds other than .30-06 are retarded and ghey.

Fact.
Link Posted: 10/29/2022 1:29:29 PM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
So in on this thread - much potential for rustled jimmies.
ETA:  looks like some are already rustled.


Also leads to the risk of kabooming.
ETA:  Whoa, lots of Jimmie’s rustled, just for pointing out the possibility.  “It’ll never happen to me because I’m not stupid”.  Probably not, as long as you are careful, but it has happened to some out there.  Not saying don’t own a 300 BlackOut because of it - feel free to virtue-signal about how careful you are though.
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Quoted:
So in on this thread - much potential for rustled jimmies.
ETA:  looks like some are already rustled.

Quoted:
I wont be switching. Sharing same mags and BCG as 5.56 seals the deal.

Also leads to the risk of kabooming.
ETA:  Whoa, lots of Jimmie’s rustled, just for pointing out the possibility.  “It’ll never happen to me because I’m not stupid”.  Probably not, as long as you are careful, but it has happened to some out there.  Not saying don’t own a 300 BlackOut because of it - feel free to virtue-signal about how careful you are though.


Handloading leads to the risk of kabooming. Heck, for that matter SHOOTING leads to the risk of kabooming. I eliminated it by using different magazine forms on my 300s. Anyone getting a kaboom out of mine DESERVED it for obviously stealing my rifle.
Link Posted: 10/29/2022 1:32:54 PM EDT
[#16]
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I saw the new Hornady offering and gave some thought to ditching the Blackout, but I won’t consider going that route until affordable 255 grain .310” diameter bullets are available for a reasonable price for reloading.
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This.

I’m setup to reload x39, but haven’t burned through all my steel cased ammo yet or begun shooting the PPU brass cased/boxer primed stuff to get more empty brass.

ETA: and making 300BO from .223 brass makes losing a few cases far less of an issue compared to rare-ish x39 brass.
Link Posted: 10/29/2022 1:33:00 PM EDT
[#17]
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Quoted:
Guys.   Pickup trucks are now obsolete since they invented utility trailers.
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Attachment Attached File
Link Posted: 10/29/2022 1:41:52 PM EDT
[#18]
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only good post in this dumbass troll thread

I’ve had a vz.58 on my wishlist for a long time, would love to get one suppressed
Link Posted: 10/29/2022 1:44:33 PM EDT
[#19]
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Quoted:
BRN-180 7.62X39 10.5 and 16.

Ruger American 7.62X39.

Mini-14 Tactical threaded 7.62X39.

All FUN and non AK .300 BO killers.
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Let me know when .mil and .gov agencies adopt a 7.62x39 over 300BO rifles which are already in use
Link Posted: 10/29/2022 1:48:59 PM EDT
[#20]
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Quoted:

Let me know when .mil and .gov agencies adopt a 7.62x39 over 300BO rifles which are already in use
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The commies we're offing Taliban with suppressed AK with x39 subs.  It's been a thing for a long ass time.
Link Posted: 10/29/2022 1:56:49 PM EDT
[#21]
The only advantage 7.62 ever had was that it was CHEAP.

Wake me up when that day rolls back around.
Link Posted: 10/29/2022 1:59:26 PM EDT
[#22]
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@rollgrinder The problem is it is still an AK and you will be lucky to hit the side of a barn!

Also, AK barrel quality vs. AR barrel quality? Nah, 300BO is superior in all ways.
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PSA is now offering an AK with a chrome lined, FN made cold hammer forged barrel.
Link Posted: 10/29/2022 2:06:52 PM EDT
[#23]
What AR bolt are you 7.62x39 guys using that doesn’t have problems? Since the CMMG mutant isn’t in production anymore

If you aren’t talking about running x39 in AR, who cares. Let the AK boys have their subsonic x39, and the AR will run 300 AAC.
Link Posted: 10/29/2022 2:11:11 PM EDT
[#24]
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Quoted:
What AR bolt are you 7.62x39 guys using that doesn’t have problems? Since the CMMG mutant isn’t in production anymore

If you aren’t talking about running x39 in AR, who cares. Let the AK boys have their subsonic x39, and the AR will run 300 AAC.
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Never broken a bolt in any AR caliber.   It's a non issue.
Link Posted: 10/29/2022 2:19:19 PM EDT
[#25]
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I’ll edit my comment.  The fact stands that it is possible, it has happened, and people should be careful when handling firearms.
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I applaud all the people in this thread who think as false headspace isn't an issue because "they're too smart for that".

"I'm too smart for that" is how every accident starts.



Never in my life have I fired the wrong round in a chamber.  Why is this not an issue with any other caliber based on a common case?  Fired many .308s in a .260?

Now that IS a dumb argument, since the vast majority of people don't have a .308 and a .260.
99% of 300 BO owners have a .223/5.56 tho.

Not calling it a reason not to own a 300 BO, just pointing out it is a possibility.

(Jimmies rustled, apparently)

Funny how people who make idiotic arguments always fall back on "rustled Jimmies" when people who know better present a valid counter.

There is a huge number of gun owners that own 2 or more firearms whose ammunition could be mismatched, chamber, fire, and have catastrophic consequences.  That was the point of his statement.

I’ll edit my comment.  The fact stands that it is possible, it has happened, and people should be careful when handling firearms.

What??? We have to practice gun safety??? No fucking way
Link Posted: 10/29/2022 2:20:16 PM EDT
[#26]
No offense to the AK lovers, but that platform's not for me. Due to the mixed reliability that has been reported in the 7.62x39 AR15's, I'm not willing to try those magazines that work with a standard lower or give up LRBHO on the ones that take AK mags. In terms of cost, I feel like the price advantage of 7.62x39 has shrunk due to recent world events. Lastly, I almost always shoot supersonic 300 BLK and there is not as good of load choices in 7.62x39 as I understand it: https://www.hornady.com/ammunition/rifle/#!/
Link Posted: 10/29/2022 2:25:16 PM EDT
[#27]
300 BO is obsolete unless you run subs and a can…
Link Posted: 10/29/2022 2:35:47 PM EDT
[#28]
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Quoted:
False. The cartridge on the .300 is a much more useful shape since it will fit in AR15 mags. Any normal AR lower can be used on a .300 blackout upper, and you can use a normal 5.56 bolt, buffer, and recoil spring. 7.62x39 only makes sense in trashcan AK platforms. Ballistics are a wash between the 2.
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Funny, I just finished putting 80 rounds down the tube of my x39 AR.  Only thing non-standard from 223 is mag, bolt (standard BC), and barrel.  On *my* particular build, there are a few more things since I have a Gibbz patent style side charging upper, but that would be the case if I had built it as 223 or 300bo instead.

Ballistics wise, the x39 adds a bit of speed over 300bo - 150-200fps.

What 300bo has going for it that the x39 doesn't is the variety of reloading info and components available for it, but what it is missing is the cheap ammo for non-reloaders or just mass blasting.  Even with Russian Imports Ending Soon x39 ammo is still plentiful and almost half the price of 300bo.  To get that price level for 300, you gotta set up to reload, and reloading in sufficient quantities to feed a semi auto takes big investment in hardware and time


Link Posted: 10/29/2022 2:37:40 PM EDT
[#29]
Both made obsolete by .30-30 Winchester. That's kind of sad.
Link Posted: 10/29/2022 2:41:53 PM EDT
[#30]
7.62x39 AR pattern mags suck donkey balls no matter how you cut it.  They work but not well enough I would bet my life on them.  300blk uses AR mags and bolt.  Hybrid AR rifles that use AK mags are the better option if you must have an AR type rifle for x39.
Link Posted: 10/29/2022 2:44:16 PM EDT
[#31]
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Quoted:
The commies we're offing Taliban with suppressed AK with x39 subs.  It's been a thing for a long ass time.
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Quoted:

Let me know when .mil and .gov agencies adopt a 7.62x39 over 300BO rifles which are already in use
The commies we're offing Taliban with suppressed AK with x39 subs.  It's been a thing for a long ass time.

Yea it has. Not in the US though
Link Posted: 10/29/2022 2:53:43 PM EDT
[#32]
Yeah no. Not with wide selection of reloading components, specifically bullets. Also the platform.
Link Posted: 10/29/2022 3:11:18 PM EDT
[#33]
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Quoted:
I applaud all the people in this thread who think as false headspace isn't an issue because "they're too smart for that".

"I'm too smart for that" is how every accident starts.
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I guess I am just smarter than you
Link Posted: 10/29/2022 4:00:46 PM EDT
[#34]
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The only advantage 7.62 ever had was that it was CHEAP.

Wake me up when that day rolls back around.
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Word. I kinda sorta kicked the idea of a X39 AR around a few years ago when com-bloc steel case was still cheap AF.

By the time I bought/built the rifle and associated accessories (including gay AF looking mags) I could just buy a bunch of cheap com-bloc .223. So there was not real point, for me.
Link Posted: 10/29/2022 4:01:59 PM EDT
[#35]
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Both made obsolete by .30-30 Winchester. That's kind of sad.
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Grandpa, you're drunk again. Go to bed.
Link Posted: 10/29/2022 4:33:43 PM EDT
[#36]
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Quoted:
The commies we're offing Taliban with suppressed AK with x39 subs.  It's been a thing for a long ass time.
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Quoted:

Let me know when .mil and .gov agencies adopt a 7.62x39 over 300BO rifles which are already in use
The commies we're offing Taliban with suppressed AK with x39 subs.  It's been a thing for a long ass time.


Are you referring to 9x39 as used in the VSS?
Link Posted: 10/29/2022 4:35:16 PM EDT
[#37]
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Are you referring to 9x39 as used in the VSS?
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No, they had suppressed 7.62 as well.
Link Posted: 10/29/2022 4:38:55 PM EDT
[#38]
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I can't shoot 300BO subsonic. The bullets bounce off the ground and go whizzing off dangerously. I could shoot supersonic only but why bother.
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Huh?
Link Posted: 10/29/2022 4:41:35 PM EDT
[#39]
Reloading made commercial ammo obsolete.
Link Posted: 10/29/2022 5:09:35 PM EDT
[#40]
Did you really need to start a second thread? You getting paid?

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Quoted:
They are BOTH obsolete with 8.6 BO.  And 8.6 BO will be obsolete with the .375 BO, which will then be obsolete with .458 BO, which will then be...
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Don't tease me. I am waiting for a 50 or 500 Blackout
Link Posted: 10/29/2022 5:14:51 PM EDT
[#41]
Well I see a lot of people will be buying new cans, when they shoot a long heavy sub in a barrel that wont stabilize it.

It might make a dent in the sales of 300blk guns once they start making ak barrels with a fast enough twist.
Link Posted: 10/29/2022 5:14:57 PM EDT
[#42]
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.300 BO cannot become obsolete so long as people want its qualities in the AR platform.

7.62x39 ARs are weird.
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the mag shape makes me uncomfortable.
Link Posted: 10/29/2022 5:18:17 PM EDT
[#43]
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@feetpiece

What mag is that?
Link Posted: 10/29/2022 5:21:34 PM EDT
[#44]
Guys guys guys! There’s something new out so whatever you had before is “oBSUhLetE!”.

Whatever.

We aren’t talking about going from riding horses to a gasoline powered car or muzzleloader to brass cased ammo.

The “obsolete” argument gets thrown around all the time in GD and it’s retarded.
Link Posted: 10/29/2022 5:26:24 PM EDT
[#45]
255gr projectile bonded ok I’m in. 855fps at 300
Link Posted: 10/29/2022 5:35:57 PM EDT
[#46]
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Yeah, OP missed the whole point of .300BO.
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I wont be switching. Sharing same mags and BCG as 5.56 seals the deal.

Yeah, OP missed the whole point of .300BO.


300 BO has lots of points, and subsonic is probably the dullest one.  But it’s good to see options and competition in the marketplace.  Probably ties up capacity that could be used for Grendel ammo though.
Link Posted: 10/29/2022 5:41:39 PM EDT
[#47]
Sort of off topic, but, what makes a BRN-180 7.62X39 upper ($969) better than a Bear Creek Arsenal 7.62X39 upper ($225)?  Is it worth 4x the price?

I know BCA is low end, of course, but I own several of their products and they function well and are a lot of fun as range toys.
Link Posted: 10/29/2022 5:46:51 PM EDT
[#48]
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Guys guys guys! There's something new out so whatever you had before is "oBSUhLetE!".

Whatever.

We aren't talking about going from riding horses to a gasoline powered car or muzzleloader to brass cased ammo.

The "obsolete" argument gets thrown around all the time in GD and it's retarded.
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I mean to be fair the "obsolete" argument can work on an obscure cartridge (or even some of the now almost defunct 6mm cartridges preceding the Grendel or ARC) that never had much of a following in the first place, but I certainly wouldn't apply it to what is probably the second most popular AR15 cartridge haha.

Even look at .40-- pretty much no one is making new handguns in it, but I wouldn't be surprised if the ammo is available on gun store shelves for the next 20 years...
Link Posted: 10/29/2022 5:49:34 PM EDT
[#49]
Link Posted: 10/29/2022 5:50:32 PM EDT
[#50]
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