Re: 300 Weatherby Pet Loads
For my Williamsport 1000 yard 300 Weatherbys, I like to use 75.5 Grs of H4831 and the 220 Gr Sierra. All my 300 Weatherbys have 30" barrels and not factory freebore.
Another good load for my rifles is 77 Grs of RL22 and the 220 Gr Sierra.
Those loads also work well with 210 Bergers