In case anyone reloads for 300 BlackOut

there are some inherent risks associated with it.

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There are usually risks inherent in loading a cartridge into a gun it isn't chambered for. I'm not saying I'm perfect, but I think it would be difficult not to notice loading a 300 in a mag full of 223.

I wonder if a 358 Win would chamber in a 30-06?

I'm not understanding your post? The article you linked is someone firing a .300 Blackout round out of a rifle chambered in .223; this can happen with guns of several other calibers in bolt and semi-auto.

This has nothing to do with compressed loads, rather it address negligence in making sure you are using the proper ammunition your rifle is chambered for.

I took my .300 Blackout to the range for its first time today, I found it to be a nice shooting round for an AR. I have quite a few AR's in several different calibers and I pay attention to what I am stuffing in the mags as everyone should.

I'm pretty sure his point is that the 300 round probably only fully chambered because the bullet was shoved back into the case when it was slammed into the shoulder area of the 223 chamber.

A compressed load wouldn't have let that happen so the bolt presumably wouldn't have closed. 357 Sig shooters often use full cases of slow powders to prevent setback on chambering because of the short case neck.

The issue of 300 BLK in a 223 Remington rifle is discussed at length here...

http://www.thehighroad.org/showthread.php?t=741721&highlight=300+BLK+in+223

My point is the only thing preventing a 300 BO from chambering in a 223 is neck tension. And the powder, if the load is compressed.

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I get that but my question is why is promoting compressed loads a savior for stupidity? I'm quite sure some goober that doesn't pay attention to what they are doing by loading the wrong ammo in a gun can certainly jamb it on in there even when it is a compressed load.
This was my point!

I'm not a fan of the 300 Black Out in any form. I'd rather have a 7.62x39 chambered AR than that. Then you don't have to worry about mixing up magazines, do you.....and you have a much more potent round. (ducking)

Some say AR's chambered for AK fodder are not as reliable......I say.....yet. I'm patient.....it's not a gun I really need tomorrow, as I have a both a Ruger 556 and a DPMS 7.62x51 to play with. I'm pretty sure the 7.62x39 will work better in a more reliable piston AR....watch.

I recently purchased a 300 AAC upper. For those who cannot keep their ammo separate these are available:



http://www.300blktalk.com/forum/viewtopic.php?f=128&t=87773

I am a safety engineer, and one thing I have seen proven over and over is that you can breed stupid but you can't fix it. If a person has range toys so similar there are easy ways to know which is which. We can start with reloading rules 1 to 3.
#1 pay attention to what your doing or the coroner will.
#2 one powder on the bench. Same...one caliber in the ____.
#3 verify everything in multiples. Your life depends on it.
I had an ar for a year or so before I got bored with it. I had 2 uppers, a .223/5.56 and a 5.45x39. Of the two, the 5.45 had mags wrapped with yellow tape. The ergo grip had the same tape. The bcg bits had yellow nail polish on them. The ammo was stored in a coffee can with yellow tape....you may see a trend here. The 223 stuff was kept in an ammo can with standard mags and the 223 upper stayed on top unless actively using 5.45. I intentionally chambered wrong caliber ammo to see what would happen. I would expect others to be equally vigilant but sometimes that's not the case. My setup could be picked out by my 5 year old nephew who saw the gun once. He figured out the yellow bullet thing went with yellow gun part thing and it all ate from yellow can.

Sometimes asking adults to be as smart as a 5 year old doesn't work out.

Should steps be taken to avoid a kaboom-yes. Should it involve the reloading bench, yes. Should the steps end there, absolutely not.

I am with West, not sure why but it seems the 300blk is more of a newbie round. Maybe because older reloaders who wanted one already had a 300 whisper years ago?

Lots of new gun owners and new reloaders in the last year and more mistakes and kaboom threads are around the corner once supplies are abundant again.

It's a gun for crying out loud and your holding it likely close to your face, if you are using your eye to aim the thing. At least be as carefull knowing what you are loading it with as you are knowing what is around/behind the target you intend to fire it at...On second thought, if you are going to hurt someone being careless, hurting yourself is preferred to hurting others and you just might make the Darwin awards.

You guys are right, that about covers it.....you can't fix stupid.

I picked up the center case at the range a few years ago. I keep it for a souvenir. I have no idea what if anything it did to the gun or the shooter. All I know is it didn't make the local paper........but then the guy who shot himself in the foot, even after 3 days of safety drills with unloaded ammo, at my friend's concealed carry class didn't either.

I do know a .40 is similar in shape to a .45 and not that much smaller.....so which do we ban? normal .40s&w at the left......normal .45acp at the right........or stupid in the middle.

Here's something to think about! Every damned one of us does something stupid......every once in a while. Maybe I ought to frame this picture and put it where I can be reminded what stupid looks like every day. (Maybe the O. P. ought to do that with those "special" gun parts he acquired.)

I solved the 223/300 problem by installing a nickel boron coated bcg in my 300 blk.

Most of my .300 Blackout ammo has .223 on the head stamp, so I guess it would work right?

As I once learned you can put 22lr cartridges in the 22 mag. cylinder of a single six. Thankfully the gun is made heck for stout.

Speaking of goober's.

I good while back I saw where a guy had reloaded his own 50 cal., not having a clue as to what he was doing, he then used a hammer to close the bolt on rounds that the bullets were not seated deep enough on to chamber. In other words, he was hammering on the bolt to seat the bullets deeper, thus jamming the bullets into the lands, and then managing to drop the sear, which sent the firing into a primer with the bolt only partially closed, KB big time. Blood every where, missing digits, pieces of firearm every where, and what not.

I've seen plenty of wrong cartridges jammed into wrong chambers, that's really not all that unusual.

You can't fix stupid!

GS

I use FDE magazines for my 300BLK and black mags for my 223/5.56. I don't stray from this.

cajun executioner, I like your idea. FDE mags for my 300 build, since I am not going to get rid of my 223 Wylde chanbered AR! May even use FDE Magpull stock and grip to tie them together.

Many times casual shooters at my office go to the range with me. While you can't fix stupid, teaching the teachable is how we get more people on our side to help block bad legislation and stupid politicians.

From the 300 AAC board.
http://www.300blktalk.com/forum/viewtopic.php?f=128&t=88181
This could make a bad day worse.
300 AAC round fired in a 5.56mm barrel.


300BLK chambered and fired in a 5.56mm barrel. The projectile is stretched out, the magazine blew out, and damaged the gun.
Source: https://www.facebook.com/#!/JCWeaponry

Could always go 458

Pretty hard to mistake the two, bandaid on the mag or not.

Can't wait to get into suppressed loads in a few years for that one. IF you have to shoot subsonic, might as well do it with DA HAMMA !

Cant fix stupid !

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True that ! But mis-chambering rounds has been happening i'm certain since there were two cartridges to choose from.

The more we can do to prevent it the better.

Heck, in shotgun shells they use different colored plastic now, preventing the ole' 16-20ga in a 12ga pipe thing.

I think the colored bandies are a great idea. We see in color for a reason- it provides great clues as to whats going on- might as well use that evolutionary advantage anywhere we can.

Still won't stop someone from popping in a 300 if it falls in the 223 can if they aren't paying attention, but anything is better than nothing in the safety department.

Jesse Heywood said:

From the 300 AAC board.
http://www.300blktalk.com/forum/viewtopic.php?f=128&t=88181
This could make a bad day worse.
300 AAC round fired in a 5.56mm barrel.

300BLK chambered and fired in a 5.56mm barrel. The projectile is stretched out, the magazine blew out, and damaged the gun.
Source: https://www.facebook.com/#!/JCWeaponry

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Wow. Just wow.

That swaged down 30 cal bullet now has approximately the same ballistic coefficient as a javelin.

Amazingly, I think they could have salvaged that barrel if they hadn't sectioned it but instead had hydraulically pushed that bullet back out.

Amazingly, I think they could have salvaged that barrel if they hadn't sectioned it but instead had hydraulically pushed that bullet back out.

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I always like learning new stuff. Do you have photos of the machine and attachments?

That is impressive.