[Yo-Yo]

Hey, let's compare the Russian 7.62x39 with the 7.62x54R while we're at it.

Sheesh.

[JudgemAll]

I would compare the Blackout to the 556.

It really is a fatter round for the AR15 that keeps bullet energy in short barrel and suppressed.

The 308 is for the AR10chambering, and the 6.5 or 6mm CM is it’s high velocity countrrpart

Sure, you could use a 308 in short suppressed format, and with subsonics you would get the exact same performance as with the 300AAC... except that the round for the 300AAC does not allow the long and heavier bullets that can be chambered in necked up 308, but those are very difficult to prevent from tumbling beyond 100 yards

[grobdriver]

Some interesting ballistics information... but one detail that makes 300 Blackout desirable is with a simple upper change you're shooting 30 caliber with your AR.

Same AR lower.
Same AR mags.

Very convenient.

[eastexsteve]

Comparing apples to oranges again. Yeah, they’re both round and grow on trees.

[Vaquero]

Admittedly I know little of the blackout.

I remember when the discussion was between the .30-06 and the .308. The government wanted a shorter 30 caliber round for reliable feeding in semi/fully auto firearms. They demanded that the new cartridge give the same performance as the venerable.30-06. The Garand was reimagined as the M-14. Shorter and able to handle 10000psi greater pressure than the Garand. This limited the new round to 150 - 165 grains for optimum safe performance As that was the weight used by the Garand, it worked.

In a bolt action hunting round, if you wanted to over weight the round for Moose/Elk/grizzly you stuck with the .30-06 in 220 grain.

Now with new powders there is more leeway to what can be accomplished. Companies like Hornady have developed non powder propellants that can give the velocities without all the pressure. These rounds are unfortunately not for the reloadeder. for those who don’t reload I’m sure you can get very good performance out of the .30 Blackout.

[Eagles6]

Article needs edited by an English speaker. ;-)

[MichaelRDanger]

If you want a compact short barreled rifle and would like a deafening blast of gas in you face than a .308 or a 30-06 would be perfect... Otherwise consider a 300 BLK.

Not only informative but you can watch an amazing example of marksmenship as Travis Haley hits a man sized target at 700 meters with a red-dot scope and a short barreled rifle firing 300 BLK

https://www.youtube.com/watch?v=tgKjbySsAik

[NY Cajun]

200 yards vs. 1000 yards

[DungeonMaster]

Speaking of .308 I am really wanting a Savage 110 Scout in .308. It just occurred to me that I could trade an impractical .44 mag for one.