I have a 158gr LSWC cast bullet I am trying to load up using Bullseye for use in my .357mag. I looked at a few of my reloading manuals for a recipe and see some big differences between these two books. Modern Reloading 2nd edition manual it says: Start 4.2 Max 4.8 For a Lead bullet COL 1.570" Lyman Cast Bullet Handbook it says Start 6.2 Max. 6.9 For Linotype COL 1.575" I could see a little different but this seems like a lot. The Lyman start is 1.4gr. over the Modern Reloading manual start. Any advice??