While any of those will do, Reloder 19 and the 338 are a perfect match up to the 225 grain weight.
Above that, I would favor the H4831. [I am using Norma MRP with my heavies]
Another powder that I am using, that works very well with the 200's and 210's is Hodgdons Hybrid 100V
Good velocities and very good groups in my 338.
Regards, Dave.