Would you be willing to share your method for coating the bullets. I am familiar with WS2 grease. Did you manage to obtain powder and what is your source ?
I've been playing with this stuff since the late 90's early 2000's....... a good friend was a benchrest shooter and gunsmith, he loved competing with 22 PPC and 6mm PPC BR guns he built himself,
he used to tell me the only way to improve a 6mm Berger was to coat it with Danzac, (WS2 powdered tungsten disulfide) I was using CT Ballistic Silvertips with amazing accuracy out of my factory hunting rifles then started using tunsgsten disulfide powder to coat all my bullets.....
I purchased 2 lbs of the stuff back then and 1 tsp will coat about 1000 bullets, it goes a long way.. the old timer passed away 2 years ago, I'm sure you can hit somebody up at BR Central and find it there, the BR crowd has the most experience with it, I'm just a hunter in Alaska that likes to shoot tiny groups at high velocity and so far and for so long it has worked very well for me...
I made a few reports on it back in 2004 but it fell on deaf ears as most were using moly at the time and didn't particularly care for my results... it was asked again recently and I updated the info here ....
http://www.longrangehunting.com/forums/f28/lazzeroni-warbird-105398/