Devil Dog - My Lyman Cast Bullet Handbook shows 14.0 grs of Blue Dot as the starting load and 1,185 fps with 22,000 CUP pressure. Maximum Blue Dot load they list is 17.5 grs of Blue Dot for 1,440 fps and 35,000 CUP.

Blue Dot should work good and if you get a chance buy some 2400 for that pistol and start at 19 grs of 2400. That will give you around 1,200 fps and is well under max load.