I have here in front of me 300 Daokat brass. It fits in these bolt faces, 7 RM M77, 300 WSM
Sako M85, 300 RUM R700. There is enough play in the bolt face to accomadate the Dakota, also the actual measured rim diameter (vs spec) is about .542
The Howa/Vangurd bolt faces in 7 RM and 300 WBY are to tight. It would be very easy to open them up.