Ted,
When I wrote that article for HANDLOADER (which included both the .338 Federal and .358 Winchester) a decade ago, I experimented with a few powders in a Ruger Hawkeye stainless .358 witha 22" barrel. The two top loads for 200's were 52.0 grains of Norma 201 with the 200 Hornady Spire Point, and 52.0 grains of TAC with the 200 TSX. Both got right around 2750 with groups of about an inch.
