I have a bunch of 350 grain hard cast .458 bullets. Anybody got a good load for this weight bullet in the Marlin Guide Gun? I have plenty of loading manuals, but just wondered if anyone had found a fairly accurate load. It does not have to be a hot load, middle of the road is ok. I also cast up a bunch of 450 grain bullets from another mold today, but have not sized or lubed them yet.