I am interested in working up a new load for my 300 Jarrett. I want to shoot a Berger 30 cal 210 gr Match Hunting VLD bullet. I have not been able to find any reloading data on this bullet for a 300 Jarrett. A friend told me to use Hodgdon H4831SC powder. He thought that a safe charge would be in the range of 70 to 74 gr and that 72 gr should result in about 3,000 fps. I would like to get as much velocity as possible without compromising safety. Can anyone help? Thanks!