Want to see the mother of all squibs?

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[ARCHIVED THREAD] - Want to see the mother of all squibs? (Page 1 of 2)

Posted: 12/19/2019 3:39:43 PM EDT

So a buddy of mine was at a range doing some shooting a few weeks back.
Shooting both .223 Rem & .300 BO uppers on a single lower switching back & forth.

He somehow got a .300 BO round mixed in & extruded it halfway down the barrel of his .223 Aero upper.
At that point he didn't realize what happened. Bolt jammed up couldn't mortar it out.
He brought it to my place & I was able to get the bolt free & low & behold, a .300 BO casing was stuck in the bolt. Popped primer fell out too.

When the rifle jammed up, he said it made a "pop" & like cooked off the propellant with lots of smoke. I had read that same description in another thread here.
I didn't have a rod to try & pound it out so he took it to his LGS & had it removed.
We are all amazed that it didn't kaboom the rifle. The .300 was a subsonic round.
Smith said the barrel & bolt were fine.

He wants to have a jeweler mount it on a chain as a reminder, I told him it would be a better reminder as a butt plug.

Be careful out there.
Edit: Grammer

Posted: 12/19/2019 3:40:46 PM EDT

[#1]

File the tip, have the coolest pencil at mini golf.

Posted: 12/19/2019 3:40:57 PM EDT

[#2]

Yeah 300 isn't for everyone

Posted: 12/19/2019 3:41:20 PM EDT

[#3]

That's pretty cool. Not gunna try it, but it's cool.

Posted: 12/19/2019 3:42:35 PM EDT

[#4]

Amazed the barrel is still in one piece.

Posted: 12/19/2019 3:42:49 PM EDT

[#5]

Good lord!

Glad nobody was injured.

Posted: 12/19/2019 3:43:00 PM EDT

[#6]

Did NOT expect that.

Posted: 12/19/2019 3:43:12 PM EDT

[#7]

Not the first
Won't be the last

Posted: 12/19/2019 3:43:17 PM EDT

[#8]

Darwin missed one.....

Posted: 12/19/2019 3:44:03 PM EDT

[#9]

Attached File

Seriously. Very lucky.

Posted: 12/19/2019 3:45:33 PM EDT

[#10]

Quote History

Quoted:
Amazed the barrel is still in one piece.

View Quote

Yes, I was pretty shocked. When I got the bolt out, we measured the length to the tip & the back of the round. It was like 2.25".

Posted: 12/19/2019 3:46:17 PM EDT

[#11]

Damn that’s pretty cool. I can’t believe the barrel/bolt is still in one piece.

Posted: 12/19/2019 3:47:49 PM EDT

[#12]

Quote History

Quoted:
Darwin missed one.....

View Quote

You're absolutely right. He knows exactly how lucky he is. A super sonic round would have been a whole other story.
He is very safety oriented but let it lapse during this trip.

Posted: 12/19/2019 3:47:57 PM EDT

[#13]

Its bad but "mother of all quibs" ? I think not.

Posted: 12/19/2019 3:48:34 PM EDT

[#14]

Quote History

Quoted:
Its bad but "mother of all quibs" ? I think not.

https://www.thefirearmblog.com/blog/wp-content/uploads/2018/03/GMR-15-9mm-with-24-660x440.jpg

https://news.guns.com/wp-content/uploads/2019/03/Hi-Point-warranty-center-clears-carbine-barrel-stuffed-with-35-bullets-cover.jpg

View Quote

Touche'

Posted: 12/19/2019 3:50:44 PM EDT

[#15]

Barrel may be fine but the bolt and barrel extension lugs may not have much life left.

We know proof loads weaken bolt lugs. Betcha that was a hell of a proof load he just fired.

Posted: 12/19/2019 3:56:32 PM EDT

[#16]

As soon as I learned that .300BO chambered in a 5.56 chamber, I was cured of any desire to own one.

Everybody has to make their own rules and live with what they're comfortable with but that won't be an issue I ever concern myself with.

Posted: 12/19/2019 3:58:06 PM EDT

[#17]

That right there is one reason I don't want anything to do with 300 BO and similar rounds that go into 5.56 mags and will fit the same chamber.

Nope, not blaming the companies, it would be on me.

I try to inspect each round before I load it into mags but I also know I get into a rhythm and go into auto load mode if not careful.

Also why I went with 9mm and .45 acp in pistols and never got into .40's, the split between 9mm and .40 isn't much.

Posted: 12/19/2019 3:59:57 PM EDT

[#18]

Crazy!
Glad your buddy didn't get hurt.
It amazes me how much "bullet" is there compared to a regular .223 bullet.
Make a new wildcat round called the 223 javelin and start with your bullet!

Posted: 12/19/2019 4:01:26 PM EDT

[#19]

Amazing shit!

Posted: 12/19/2019 4:01:48 PM EDT

[#20]

That extruded bullet is fascinating!

Posted: 12/19/2019 4:03:19 PM EDT

[#21]

I did not think an oversized bullet would extrude so perfectly uniformly like that, especially that long.

That’s crazy.

Posted: 12/19/2019 4:03:20 PM EDT

[#22]

Quote History

Quoted:
Its bad but "mother of all quibs" ? I think not.

https://www.thefirearmblog.com/blog/wp-content/uploads/2018/03/GMR-15-9mm-with-24-660x440.jpg

https://news.guns.com/wp-content/uploads/2019/03/Hi-Point-warranty-center-clears-carbine-barrel-stuffed-with-35-bullets-cover.jpg

View Quote

always wondered where the gas between the bullets went. crazy

Posted: 12/19/2019 4:03:49 PM EDT

[#23]

Nice to know the Aero hardware held together

Posted: 12/19/2019 4:04:54 PM EDT

[#24]

Quote History

Quoted:
Damn that's pretty cool. I can't believe the barrel/bolt is still in one piece.

View Quote

This.

I find it hard to believe everything stayed together for the bullet to do that. wow.

Posted: 12/19/2019 4:05:00 PM EDT

[#25]

Quote History

Quoted:
That right there is one reason I don't want anything to do with 300 BO and similar rounds that go into 5.56 mags and will fit the same chamber.

Nope, not blaming the companies, it would be on me.

I try to inspect each round before I load it into mags but I also know I get into a rhythm and go into auto load mode if not careful.

Also why I went with 9mm and .45 acp in pistols and never got into .40's, the split between 9mm and .40 isn't much.

View Quote

I have both & I'm lucky enough to have a range at my house.
I control the ammo that's out & neither is at the shooting bench at the same time ever.
I only allow one shooter at the line at a time too so I can watch. My son is also a great set of eyes as well as a few others.

Posted: 12/19/2019 4:06:32 PM EDT

[#26]

Wow.

Posted: 12/19/2019 4:07:15 PM EDT

[#27]

Quote History

Quoted:
I did not think an oversized bullet would extrude so perfectly uniformly like that, especially that long.

That’s crazy.

View Quote

Now ask yourself what would have happened if it had a steel penetrator in the bullet................

Posted: 12/19/2019 4:07:46 PM EDT

[#28]

That's crazy.
I've been on the fence about wanting a 300 upper.
I'm not sure if this is a pro or a con.
It blew that bullet pretty far thru that barrel!

Posted: 12/19/2019 4:08:43 PM EDT

[#29]

Ballistic coefficient calculator form
Bullet weight (grains)
123
Bullet diameter (.223, .308)
.22
Bullet shape Spitzer

Boattail

Boattail HP

HP

Roundnose

Ballistic coefficient
0.713

Posted: 12/19/2019 4:09:37 PM EDT

[#30]

Quote History

Quoted:always wondered where the gas between the bullets went. crazy

View Quote

Out the breech, when bolt cycled

Posted: 12/19/2019 4:15:54 PM EDT

[#31]

Quoted:

Shooting both .223 Rem & .300 BO uppers on a single lower switching back & forth.

View Quote

Attached File

Posted: 12/19/2019 4:17:53 PM EDT

[#32]

Quote History

Quoted:
Good lord!

Glad nobody was injured.

View Quote

No kidding that could've been much worse

Posted: 12/19/2019 4:19:15 PM EDT

[#33]

he just made a new round! anyone have a chamber reamer for a 300556 blackremingtonout?

Posted: 12/19/2019 4:30:55 PM EDT

[#34]

Damn!

Posted: 12/19/2019 4:33:29 PM EDT

[#35]

Guess that's one way to clean the barrel.

Posted: 12/19/2019 4:33:40 PM EDT

[#36]

I'm glad the barrel didn't turn into shrapnel.

I have two almost identical P226's one in 9mm, the other in .40 when I take both of them to the range I'm feel like I'm tempting fate.

Posted: 12/19/2019 4:38:14 PM EDT

[#37]

FPNI. I like the cut of the FPNI'ers jib.

A man who knows how to make lemonade out of any lemon.

Posted: 12/19/2019 4:44:41 PM EDT

[#38]

He needs a jeweler to make a hole in it??

Posted: 12/19/2019 4:47:24 PM EDT

[#39]

Quote History

Quoted:
He needs a jeweler to make a hole in it??

View Quote

Not if he follows my advise.

Posted: 12/19/2019 4:49:43 PM EDT

[#40]

Quote History

Quoted:
Yeah 300 isn't for everyone

View Quote

fad round that will kill someone someday!

Posted: 12/19/2019 4:54:17 PM EDT

[#41]

Now that's sectional density. Suck it, 6.5s.

Posted: 12/19/2019 5:11:33 PM EDT

[#42]

Quote History

Quoted:
As soon as I learned that .300BO chambered in a 5.56 chamber, I was cured of any desire to own one.

Everybody has to make their own rules and live with what they're comfortable with but that won't be an issue I ever concern myself with.

View Quote

I felt that way too but the suppression abilities of the 300BO have me reconsidering

Posted: 12/19/2019 5:34:04 PM EDT

[#43]

Attached File

Posted: 12/19/2019 5:40:16 PM EDT

[#44]

Nifty sight adjustment tool.

Posted: 12/19/2019 5:44:54 PM EDT

[#45]

I do not think the term "squib" is correct in this instance.

Posted: 12/19/2019 5:46:19 PM EDT

[#46]

How did the gunsmith remote it from the barrel?

Posted: 12/19/2019 5:56:25 PM EDT

[#47]

Even if I have rifles in both calibers at the range, I make sure I only have one on the line at any given time. I also make sure that the ammo on the line matches the rifle. That's just common sense.