Im starting to reload for a .243 win with a 1:10 twist 24" barrel, using 95gr SST. Hornady brass with CCI200 primers. The problem is that I can not get hold of any powder that is known to work in the cartridge. In an ideal world I would use IMR or H4350 but currently the only powders in stock is IMR 7828ssc, H1000 and Varget. Not one of these powders really suite the burn rate that the .243 win likes. The only one of those three powders that seems like it might work is 7828ssc. Anybody out there that is using 7828ssc in the 243win with a similar bullet weight ? What is the accuracy like?