With 300blk suppressed, does barrel length matter? (first 300 build)

[Seangc]

i want to build a specific CQB SBR (to be used while operating in my moms basement) in 300blk...
with that said, My question is there a difference with noise reduction between a 6.5 & 8 inch barrel using factory sub loads?

I’m sure there is no audible difference, but then I can’t find anything on the web regarding this.

Planning to use my sandman k... not looking for the quietest setup...
just and not wanting to blow my ears out in close quarters like with my MK18 upper.

Thanks!

[Flatliner]

That’s funny

[dellet]

Shorter the barrel, the more noise it will make, there are other factors.

Factory subs will be loud, but nothing like unsuppressed supers. Depending on the finish of mom’s basement it could still be deafening for the short term. Bare cinder block will hurt, if she had it insulated so she doesn’t hear you entertaining yourself it won’t be too bad.

The link below may help.

viewtopic.php?f=128&t=98869

[smustian]

CQB SBR (to be used while operating in my moms basement) in 300blk...

[Seangc]

Shorter the barrel, the more noise it will make, there are other factors.

Factory subs will be loud, but nothing like unsuppressed supers. Depending on the finish of mom’s basement it could still be deafening for the short term. Bare cinder block will hurt, if she had it insulated so she doesn’t hear you entertaining yourself it won’t be too bad.

The link below may help.

viewtopic.php?f=128&t=98869

Thanks! Just what I was looking for!

[bearcatrp]

CQB SBR (to be used while operating in my moms basement) in 300blk...

That’s the new soldier from the Obama era that trump is trying to get rid of. That’s funny though.

[Fogtripper]

CQB SBR (to be used while operating in my moms basement) in 300blk...

That’s the new soldier from the Obama era that trump is trying to get rid of. That’s funny though.

Ironically that guy probably gets 100% more physical activity than your average keyboard commando. And he looks happy to boot.

[Freedom1973]

Moms meatloaf must be the bomb! Meal Team Six!

[pruhdlr]

Would suggest that you only load up several rounds.
Remember that you have the overpressure and the smell.
If you are over 26 your mom just might make you move out. --- pruhdlr

[GunFunZS]

can I persuade you that you really want a 10" barrel?

That's around where you get a lot better SS velocity, and the subs are less obnoxious without a can. Plus you have a lot more barrel length to help with dwell time after your gas port...