300 AAC Blackout

[Hoser]

So the Blackout is the way to go when getting into the 300 animal?

Either work. I think the Whisper is more accurate, but the Blackouts different throat lets you run more pressure/higher velocity.

Spook (a member here) built my latest 300 Whisper upper. Incredibly accurate and with a 20 inch barrel I can get some impressive velocities. I dont need no stinkin blackout...

[El Caballo Loco]

I think the 300blk has gained momentum in it's current state because of a few reasons...

1. It is a great, versatile round that can be fired out of a common platform without a lot of hooplah needed to send the scunyon down range

2. "Did you say BLACK....OUT??? AAC....BLACK.....OUT....OMFGZORS THIS IS QUITE POSSIBLY THE COOLESTLY NAMED FUCKING ROUND IN THE HISTORY OF ROUNDS I MUST HAVE A RIFLE THAT BLACKS OUT MOTHER FUDGERS WITH MY BLACKED OUT VEST AND POUCHIES AND BLACK GUNS AND STUFFS BLACKOUT OR DIE MOTHER FUCKERS!!!" - random gear queer

Just wait until they come out with a ".408 shootyouinthefacewith300grainsofThorsfury". That one will be going places.

[xring]

Thread hijack sort of- can either the whisper or the blackout be easily formed from .223 brass?

[xring]

I assume these are running real fast twists?

[Hoser]

Thread hijack sort of- can either the whisper or the blackout be easily formed from .223 brass?

Yup. Cut the 223 back to 1.355 or so and form a short neck.

I assume these are running real fast twists?

Most 300s use an 8 twist barrel to shoot the heavy subsonic ammo.

Here is a picture.

[Sharpienads]

Here's another comparison of 300BLK vs 5.56.



The ONLY difference between a 5.56 rifle and a 300BLK is the barrel. Same bolt, same magazines, etc. As you can see in the above picture both rounds are loaded into PMAGs.

[spqrzilla]

The current Hodgdon 2012 Annual has some data for .300 Blackout. Thankfully, they are able to correctly describe what JD Jones has on the .300 Whisper, e.g., a trademark. Something even JD Jones can't get straight (writing in American Handgunner that he had "copyrighted the cartridge", which is nonsensical ).

[mikeh1911]

From what I understand and please correct me if I'm wrong, the Whisper can work in a 300 but be careful about shooting a 300 Blackout in the Whisper chamber. Like shooting 556 in a 223 chambered gun.

[Hoser]

From what I understand and please correct me if I'm wrong, the Whisper can work in a 300 but be careful about shooting a 300 Blackout in the Whisper chamber. Like shooting 556 in a 223 chambered gun.

Exactly.

However,,, there is no standard version of the 300 Whisper. There is about a million different flavors.

[Sharpienads]

The chair is against the wall.

John has a long mustache.