He was just asking what powders you have to choose from for the 185 TTSX.
The 185 TTSX is an excellent choice and in my experience either TAC or 8208 XBR work very well. Velocity has been in the low to mid 2700s with exceptional accuracy. AA2230, as he mentioned, might be a good choice as well. I have not tried it with the 185, but I did with the 180s and got excellent velocity.

If I had to recommend one, it would be TAC.