I'd watch out that winchester/imr/hodgdon web site.The loads are a bit on the hot side I was going to use there data for some 45-70 loads at the trapdoor level for my 74' Sharps and the suggested loads from the hodgdon site would have actualy fallen into the Ruger #1 pressure levels.Your best bet when looking for a new load is to do a compairison between the Lyman,Hornady,Sierra manuals and split the difference with an average.