Marty Emailed me with this response to my thread.
Since I cannot post in GunCo and don't want to open yet another account for yet
another forum, here are some pointers for some of the nay sayers over there.
35 x 39 or 9mm PPC was looked at, as a matter of fact that is why we first did
the 358 CQB based on the .30 Rem case. We avoided going with necking up
standard x 39 cases to 9mm to avoid potential disaster due to someone chambering
a 7.62x39 in that same rifle. Also, the case HAS to be improved to be able to
take the 9mm bullet, so that means a PPC like profile and NEGATES the ability to
use normal AK mags. Furthermore, it means either buying PPC brass or
fireforming. Option 1 is expensive, option 2 laborious and expensive. That
ruled out the 9 x 39 for us (it was the first round we considered)
Also, read Fortier's comments from the field user. Good energy, lacking
accuracy. This is partly due to the 9mm bullet design. THe 300 gr SMK has
superb BC and can deliver MOA accuracy at 500 yards. Plus, what most folks
don't know is that AP bullets are available for the .338 .... as well as that
frangibles are being developed ...
On forming the cases, all you do is take virgin 10mm, lube it and make ONE PASS
in the FL sizing die and you're done. That should address the one person who
ruled out the .338 for that. THe Leviathan is completely the opposite idea -
small bullet at HV AND you have to get their custom brass. The 10mm brass is
off the shelf. Reed Ammo is getting ready to sell loaded ammo.
Custom barrels - ANY of the rounds mentioned, 9 x 39, 35 x 39, 338 Spectre are
proprietary and can be gotten from one source only, unless you purchase the
reamers. Then you still need someone to turn the blank and chamber it. Just
buying a 35 Rem barrel gets you nothing ... nor just buying a blank ... you
still need the reamer, hs gauges, etc. If you get the AK clone that takes AR
mags with an adapter or something(there appears to be one because one customer
mentioned going that route and we are making a custom RPK foreend for them for
that reason) and use the SPC mags, you get 28 round capacity ...
I would like to think that for these reasons the 338 Spectre beats the 9 x 39,
the 35 x 39 or any other contender ....
Dave Fortier even likes the Spectre, as does the chief engineer for Arsenal ..."