300 Blackout Warning

[Ganderite]

If you have this ammo and also happen to have a 223/5./56 rifle be careful.

The 300 can chamber in a 223/5.56.

http://www.thefirearmblog.com/blog/2016/11/30/potd-informative-300-blk-cutaway/

 

[Trinimon]

Yup. This is the reason why I will NOT have both rounds out at the same time on the bench. It'll be way to easy to accidentally grab a 300BLK loaded mag and try shoot it from your rifle or worse, having a new shooter not knowing the difference and accidentally grabbing that 300BLK mag to shoot out of your 223 rifle. This should be common knowdledge for anyone getting into 300BLK and owning a 223/5.56.

Looks like the head of the case blew out but the barrel didn't kaboom.

 

[prairie lover]

I wonder what the bc is on that bullet.....

 

[Juster]

You can buy 300BLK rubber bands on eBay, one on the stock, one for each mag:

Painter's tape and a sharpie would do.

 

[cr5]

I just don't have both types of ammo loaded into mags and on the table at the same time.
Definitely hope I never squeeze a bullet like that.
Is that what you call fire forming bullets? Be cool to be able to shoot projectiles like that, a 155gr 224 three inch long spike might fly a little funny though.

 

[Kevin M.]

Whooooo... talk about some serious swaging lol.

 

[FrankieT]

I am the only one who ever loads my mags. All my 5.56 are in 30 round body mags. All my 300 BLK are in 20 round body mags.

 

[buzzmagoo]

Looks to be a test barrel ,cool to see the after math but wouldn't want it to happen mess your day up for shure . Now if you had a say 2inch barrel wonder hummmm ???

 

[Redlight35]

You would probably only try it once. lol

 

[kodiakjack]

I wonder what the bc is on that bullet.....

Impossible to measure. You can't do the math on a projectile that's in two counties at once.

 

[tiriaq]

One of the few advantages of a forward assist is that you can get the bolt closed when loading .300 in a .223 AR. The rifle will be wrecked, of course, receivers broken.

 

[kodiakjack]

I always wondered how they made those underwater bullets. Now I know

 

[Suputin]

If you have this ammo and also happen to have a 223/5./56 rifle be careful.

The 300 can chamber in a 223/5.56.

http://www.thefirearmblog.com/blog/2016/11/30/potd-informative-300-blk-cutaway/

Uh huh .... welcome to like 3 years ago.

Yup. This is the reason why I will NOT have both rounds out at the same time on the bench. It'll be way to easy to accidentally grab a 300BLK loaded mag and try shoot it from your rifle or worse, having a new shooter not knowing the difference and accidentally grabbing that 300BLK mag to shoot out of your 223 rifle. This should be common knowdledge for anyone getting into 300BLK and owning a 223/5.56.

Looks like the head of the case blew out but the barrel didn't kaboom.

ALL the guys whinging about shooting .311 in a .308 bore really need to look at this pic. This is a .308 in a .224 bore and the barrel didn't explode. This certainly shows that a few thou smaller bore isn't going to make a gnat's arse hair of a difference

 

[Scotty454]

Uh huh .... welcome to like 3 years ago.






ALL the guys whinging about shooting .311 in a .308 bore really need to look at this pic. This is a .308 in a .224 bore and the barrel didn't explode. This certainly shows that a few thou smaller bore isn't going to make a gnat's arse hair of a difference

That's a pretty heavy barrel though... I'm sure the pencil barrel on my Benelli MR1 wouldn't have held up as well.

 

[prairie lover]

Uh huh .... welcome to like 3 years ago.






ALL the guys whinging about shooting .311 in a .308 bore really need to look at this pic. This is a .308 in a .224 bore and the barrel didn't explode. This certainly shows that a few thou smaller bore isn't going to make a gnat's arse hair of a difference

notice the case head blew off

 

[Suputin]

notice the case head blew off

Yep. Turns out those case things are super cheap and easy to replace.