NFA requirements for SBR caliber

[hr00544]

Not saying sbrs aren't my cup of tea I have an lwrc six8 uciw. I'm saying to only lose 3" and 300 fps isn't my cup of tea.

[hr00544]

Just simple opinions no need to get your panties in a was Jason.

[domestique]

Was the blackout really developed for short barrel rifles or to be suprresed out of an M4? 5.56 short barrel rifles are effective, but to only cut down three inches plus $200 and lose some 300 fps? Not my cup of tea but hey do what you want short barrels no matter the caliber are a joy to shoot. If its for plinking and shooting cardboard it isn't as crucial.

First and foremost, the 300 blk was designed to achieve AK 47 ballistics out of an AR platform.

The added benefits:
- you only lose around 150 fps from a 16" to 9" barrel
- interchangeable bolt & magazines with 5.56
- amazingly efficient powder burn rate to barrel length
- subsonic and supersonic capabilities without adjusting the gas system
- 300 blackout is usually quieter then 5.56 (comparing supersonic, due to more efficient burn rate).

I'm sure I've missed more positives.

[nova3930]

I've been under the impression 300 was designed specifically for low noise and short barrels. I mean you get full powder burn in, what is it, 9" IIRC? The only thing stopping me from building a 9" 300 for HD is the lack of cheap practice ammo. I can get away with expensive ammo on my 6.8 since it's a hunting only rifle. Can't justify that on a HD rifle....

[Boba Fett v2]

OP, what makes you think .300 BLK is going to disappear? Build and register a .300 BLK lower. Who gives a shit. The round ain't going nowhere. And if you're really that worried about it start reloading your own ammo.

[454308]

They rejected my first form 1 for listing 300 blackout. Supposedly their system doesn't recognize the round, so if you do submit list it as 300 or 308.

[BigWaylon]

They rejected my first form 1 for listing 300 blackout. Supposedly their system doesn't recognize the round, so if you do submit list it as 300 or 308.

They'll take it on a paper form, or at least they did for me (submitted fall of '14). But EForms doesn't like it, which is why I gave that same advice early in the thread.

[Sierrahotel83]

I see 300 as a reloading only proposition... Looking at the cost I mean it is the only way to have fun with it and get to rock out

[Sierrahotel83]

I really appreciate the comments herein as I am planning on building Sbr but using 2 uppers. So I assume the need to do is to fill it out on the upper I will have first (300)

[Renegade]

First and foremost, the 300 blk was designed to achieve AK 47 ballistics out of an AR platform.

This - From horse's mouth.

http://300aacblackout.com/