300BLK in a 5.56 barrel

[hunter2]

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

Wonder what would have happened if it had been a cast bullet...

[JeffWard]

Sharpie makes oil-based paint pens that work GREAT. I just labeled all my 300BLK mags with a large red "300" near the top, right were the mag goes into the mag well.

JW

[gabe1519]

Hmm. He must have used a short load. More powder and that bullet would just shoot right out .

Good thing I only have enough money to shoot one caliber.

[jryock]

Sharpie makes oil-based paint pens that work GREAT. I just labeled all my 300BLK mags with a large red "300" near the top, right were the mag goes into the mag well.

JW

That's what I do. Goof Off takes the paint right off without harming the mag when/if I need to switch. I also have been putting "super" or "sub" on them with the projectile weight.

Lately I have been taking a few wraps of hockey tape on the mags for grip; then I just paint pen on that. It makes the switches even easier.

[hunter2]

double post...

[Guest762]

The way it's cut out so nice it makes me wonder if it was done on purpose for a demonstration piece.

[plant.one]

The way it's cut out so nice it makes me wonder if it was done on purpose for a demonstration piece.

the cut was done as a demonstration , i seriously doubt that anyone would fire a 308 through a 5.56 intentionally just to see if it would kaboom or not

[Guest762]

I don't know if it was or wasn't but r&d is accomplished somehow. I would be willing to bet good money that those cut outs weren't done in someone's garage.

[Twinsen]

But what was his group size?

Did he crono it?

Is he sharing his load data?

If it was a 5.56 chamber, would it be ok?

Can I use a 223 silencer if I shoot 300 BLK out of a 223?

[plant.one]

I would be willing to bet good money that those cut outs weren't done in someone's garage.

i think there was another thread about having a barrel cut like that after it happened to a member on here. the word i remember reading out was using a Wire EDM to acheive the process.