It did just occur to me that a few years ago I asked Hodgdon about why there was no load data for a 200gn when it does so well with a 210. They responded that they felt it was too slow to be beneficial in the 200. They show max loads of 49 with the 210 partition and 52 with the 215 Sierra and 48 with a 225. That provides a ballpark to work in for a 200. I'm still curious as to how it will work.