Mastercast is a Great company to deal with, he has a very good mix for his bullets, the 200 LSWC work great for me on top of 5.2gr of W-231 or H-38 which is the same powder, in fact one day when I bought some powder from them, he showed me the 20# tub with the marking of w-231 as the manufacture with the label showing H-38.
Great prices and a really great looking bullet, you'll like them.
Joe