New upper build- 300 whisper or 6.8 SPR

M16MANIAC · Post by **M16MANIAC** » Wed Dec 17, 2008 12:06 pm

I can't decide if I want to build a 10-12" 300 whisper SBR or an 18" 6.8 SPR.
WIll probaly use for hunting deer sometimes and will be run suppressed 90-100% of the time.
As of right now I do not reload but want to get started in the near future,
mostly 223 and 6.8 (300 whisper if I build one).
What kind of accuracy can I expect from an SBR 300 whisper.
With the 6.8 SPR it will also be eqiupped with the PWS gas piston system.
I have been wanting to try one out, it has a suppressed and unsuppressed setting on it.
I have read that unless you get a complete SSK upper the chamber will not be to 300 whisper specs do to it being patented

Help me out with some suggestions

gimp2x · Post by **gimp2x** » Wed Dec 17, 2008 12:57 pm

the patent thing you mentioned is bogus

the biggest frustration I had was that nobody sells a chamber/case gauge, but SSK shipped me one for $35

I'd say 300 whisper, you don't need custom mags...but I highly recommend a pistol length gas tube with adjustable (set screw, not switchblock) gas block

redtazdog · Post by **redtazdog** » Wed Dec 17, 2008 1:05 pm

gimp2x wrote:the patent thing you mentioned is bogus

the biggest frustration I had was that nobody sells a chamber/case gauge, but SSK shipped me one for $35

I'd say 300 whisper, you don't need custom mags...but I highly recommend a pistol length gas tube with adjustable (set screw, not switchblock) gas block

+1 for the 300 whisper
.

.
or for the most Quiet
.

M16MANIAC · Post by **M16MANIAC** » Wed Dec 17, 2008 7:44 pm

Is there any advantage to go with a barrel longer then say 12" with the 300 whisper?
Whick barrel manu. would you recommend(I want to go SS)

redtazdog · Post by **redtazdog** » Wed Dec 17, 2008 8:20 pm

M16MANIAC wrote:Is there any advantage to go with a barrel longer then say 12" with the 300 whisper?
Whick barrel manu. would you recommend(I want to go SS)

.
If you only shoot Sub ammo then a 10 inch barrel will work fine.
SSK or Novese is the best but there is others that are good.
If you can go with the gas port hole in the pistol position
then you can do a SBR or integeral.
Soon my AR 16inch barrel will be integeral so I left it long until then.
.
Here is a forum that has alot of what you will need to know
before you build.
.
http://www.quarterbore.net/forums/index.php?f=27

M16MANIAC · Post by **M16MANIAC** » Wed Dec 17, 2008 8:32 pm

Thanks redtazdog.
Can you get just a barrel from SSK?

redtazdog · Post by **redtazdog** » Wed Dec 17, 2008 11:03 pm

M16MANIAC wrote:Thanks redtazdog.
Can you get just a barrel from SSK?

I wish!
JD Jones wont let just a barrel sell, he wants to sell the upper
complete.