I think it is 105.3grs. of water. I did a 7xr which is also based off the 300 Norma Mag. I also did a 338xr which is off the 338 Norma Mag case. I like long necks so these are long neck 35 degree shoulder deals with the case straightened a bit. I had a re-sizing reamer made & simply run the brass into the re-sizing die and shoot. It shoots so well while fire forming I would gladly fire form brass for folks.
Semper Fi
Semper Fi