I'm in the camp of just shooting factory ammo at present but I'm set up to cast bullets as well as reload if need be. BTW, OP, you won't replace that 231 for $45 a pound. More like $65.
on my way this afternoon to buy 2 more lb's of W231. I just called and they are in stock for $37.39/lb + tax and a 50 mile round trip.
I am in love with this powder, its one of the cheaper powders and I can almost always find it.