Accurate #9C

[Catch]

Just obtained some Accurate #9C. Did some research and now believe that it is the same powder as Acc #9 but sold commercially.
Just to make sure, I tried some of each and the velocity in my .357 Sig was similar. I tried to contact Accurate by E mail, but they have not responded to my inquiry. Does anyone have and knowledge or experience with this powder? Any sharing of information will be appreciated as I have several pounds of it but want to use it safely. Thanks for the help.

[44MAG#1]

I have maybe 10 or 11 pounds of it.
Mine is slower than #9.
I use more than I would with #9

[Mugs]

I have 8# of #9S. It is the same as H 108. I think they were both WC 820.
Mugs

[Catch]

My research over the chrono seems to bear out that it is a little slower than ordinary #9. It seems to be close to 2400. 44 Mag, do you use a mag primer with yours? Thanks for the answers guys...........Catch

[44MAG#1]

Mine seems about a 1/3 of the way between 2400 and H110/W296. I use a standard primer with mine but a mag would work but then again I use standard with H110/W296 too.

[fecmech]

I have some 9C and talking to AA some years ago they said it was a bit slower than the regular AA9. I have about 2 lbs left.