I'd say try to find a caster in your area(freight cost being what it is and lead is heavy,the closer you find the better).If you can get a bullet in the 215/225gr range,10gr Unique will give you around 1150/1200fps and ,while you will know it when you touch one off,it is easy on both the gun and the shooter.
If you want something with more ''gusto'',a full charge of H110 developped for a 255 or 265 gr bullet will yield you above 1300fps and will draw attention on the firing line.Not recommanded for indoor ranges though!
Have fun.