Just received my mold from mountain molds runs 250 grs. in my alloy, any one have a pet cast load for 9.3 somewhere in this weight range?

Try 5744 (made in the Czech republic, marketed under the Accurate banner, now owned by Western Powders out of Montana ).

Anyway, start at 28 grains, and work up until you get the velocity you want. Without a gas check 1,900 fps would likely work well. With a gas check you could go up to 2,200 fps. All this assumes a reasonably hard alloy and/or heat treating of the cast bullets to Brinnell 20-21 or so.

lawndart