The lee manual has the starting charge at 51.8gr with max at 54.0gr with a 165grin-jacketed bullet using IMR4350. H4350 starts at 53.0 and maxs out at 59.0. Make sure you use the right data for your powder and bullet!
From the Hodgdon site
http://data.hodgdon.com/cartridge_load.asp
165 GR. SIE SPBT 165 H4350 .308" 3.300" start 53.0 2678 38,400 CUP max 59.0 2938 49,400 CUP
165 GR. SIE SPBT 165 IMR 4350 .308" 3.300" start56.0 2746 48,100 PSI max60.0C 2934 57,600 PSI C=compressed load
168 GR. HDY HPBT 168 H4350 .308" 3.230" start55.0 2695 40,400 CUP max59.0 2897 48,100 CUP
168 GR. HDY HPBT 168 IMR 4350 .308" 3.230" start54.0 2720 48,500 PSI max58.0C 2903 57,800 PSI C=compressed load
This info is what I could easily find and is only close, as it does not reference your exact bullet. Notice that they use quite a bit more IMR4350 than the lee manual states and it does become a compressed load near the max. See if you can find data for your exact bullet, you may have to call hornady. And make sure you zero your scale. Have fun and enjoy.
mello