Powder Valley is in pretty good shape on AA powders and has almost all Vihtavouri. Hodgdon, Winchester, and IMR, not so much, although they do have 700X.
I have loaded a good deal of pistol ammo with 700X because I have always kept some for 12 gauge. But it is aggravating with uneven metering from RCBS, CH, and Dillon measures. Maybe I should have adapted a Lee.