I have used WC820 for my hunting rounds in my 44 mag. and have always used the loading data for AA #9. I am just getting into the 10mm business. I recently bought a Para Elite LS Hunter and will pick it up this afternoon.
WC820 is very close to AA#9's as it was used in its formulations, it is said the H108 is about the same. Win 296 and H-110 are also formulated blends with WC820
WC820 is what makes up most of Accurate Arms #9's formulation. Back earlier it may have been closer to 100% WC820
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000017/SP%20Ref%20612%2010x.jpg)
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000625/SP_Ref__373_10x.jpg)
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000626/SP_Ref__374_10x.jpg)
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000598/SP_Ref__342_10x_.jpg)
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000517/SP_Ref__253_10x.jpg)
Accurate-No. 9 New Blend
Ref#727 No 9 Blend 118/92 20% IMI No7 80% WC 820
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000824/SP_Ref__727_10x.jpg)
Ref#739 No9 Blend (WC820 90%, WC 350 10% 106/94
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000836/SP_Ref__739_10x.jpg)
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000825/SP_Ref__728_10x.jpg)
(http://www.ilrc.ucf.edu/powders/documents/powder%2000000830/SP_Ref__733_10x.jpg)
There have been several formulations over the years...
As Shadow says, the formulation has varied over the years.
Vietnam Era WC820 is a pretty close match for AA#9. Of course, this is back when H110 and AA#9 were actually the same powder under different labels.
Over the years either #9 got faster or WC820 and H110 got slower. But today's WC820 is pretty much a match for H110, and not so much for AA#9.
I would say load it up and give it a try. But don't be surprised if it burns a bit slow for 10mm. I have often thought I might give a jug a try, and if you have good results, I will be more likely too. I burn a lot of WC846 and WC860/872 in rifle cartridges.
This sample from my container of AA#9 (1980) doesn't have any flatten ball flakes in the mix, only microbeads. Which is why I think that it was probably 100% WC820 (it wouldn't deliver the velocities of the newer formulations)...
I could load a max load (12.5 grains under the 200XTP) and it wouldn't compress enough and the bullets nose would deform trying to do so! The bullets would actually be pushed up from the seated depth.
(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0210.jpg)
That was the stuff. I burned up my last of that about a year ago.
Quote from: The_Shadow on January 29 2015 02:43:58 PM MST
This sample from my container of AA#9 (1980) doesn't have any flatten ball flakes in the mix, only microbeads. Which is why I think that it was probably 100% WC820 (it wouldn't deliver the velocities of the newer formulations)...
I could load a max load (12.5 grains under the 200XTP) and it wouldn't compress enough and the bullets nose would deform trying to do so! The bullets would actually be pushed up from the seated depth.
(http://i1086.photobucket.com/albums/j441/_The_Shadow/IMG_0210.jpg)
This is what my surplus WC820 looks like. I would rather use one of the newer powders, but as everyone knows powder is kind of hard to find. We got some of the new CFE powder in but it was the 223 stuff, not pistol!!! I was surprised to see Unique on the self that other day when a shipment came in. thought they were going to discontinue that powder? Guess not. I use that powder quite a bit.
I managed to find some FMJ plated 180 bullets in a small LGS the other day. Ordered and received my Starline brass and will be sitting down to knock out a bunch of rounds in this cold weather. Nice weather for reloading in the comfort of my reload room. I also found a box of XTP 180 gr. bullets for hunting rounds. Now those I will work up for accuracy.
Rafsob, Maybe you can take a picture of the WC820 and post it here, I use the scale pan because those little beads will run away on a sheet of paper...
It should load just like AA#9 powder for the most part, you can't get enough in the case with the heavier bullets.
Good luck, ;)
Quote from: The_Shadow on January 30 2015 08:46:06 AM MST
Rafsob, Maybe you can take a picture of the WC820 and post it here, I use the scale pan because those little beads will run away on a sheet of paper... ;)
Here it is:
(http://i74.photobucket.com/albums/i249/lstolk/EVERYTHING%20ELSE/IMG_0576_zps3eaa70a5.jpg)
It appears like the stuff that you have. I've been using this stuff for all my hand cannons, 45 LC, 44 Mag. 357 Mag. and 22 Hornet.
I've been using the AA #9 data all along. It has served me well during this time. When I got this powder from the supplier, he said to use this data.
I will be loading for my Para Elite LS Hunter:
(http://i74.photobucket.com/albums/i249/lstolk/My%20Handguns/EliteLSHunter3_zpsec326810.jpg)
Now the fun part is to load up my test rounds. I always start by down loading them 10% and go from there. I'm the kind of guy that doesn't see going to the outer limits with my guns. No sense over loading the frames.
thanks Shadow for the help. I'll remember that!!! ;)