Help! I need some data for a 24" barrel (its at the Smiths, don't know the actual throat length on this Model 700 factory 300 wby yet) I could wing it with all the data I have so far, but none are for over 62K, and I would "like" to get 64K or as close as the rifle likes them. It would also give me Boundary Limit to check with my Chronograph. I have Remington brass for my hunting loads and a mix of Norma/Hornady brass for practice. I also have N560, 7828, Magnum, H4831/4350 and a few others. I am really interested in what N560 gives. I'm having my Leupold 2.5x8 with CDS put on it, so I am staying with the heavies for now, can dial it in. All help very much appreciated!