Keep an eye on http://www.gunbot.net/reloading/Powder/
I'm going to load those bullets and brass for TS... the only issue is I don't have his rifle with me to do testing... so I want to stay with the above powders as they are known to me extensively and I'm sure I can develop a "general shooting load" that will perform to standard.
Of course there are PLENTY of other powders out there that will work I'm sure, H4895 being one. David... you can get the H4895 and we can go from there if you want.