I use Montana Gold bullets more than anything else. When I can't find the data I'm looking for I will use the load data for the XTP bullet for Montana Gold JHP bullets. It normally runs close. I do start at the bottom (starting load) and work my way up slowly. I find my best loads are normally never at the top end of the listed data. Once you find a load that cycle well you only need to increase to a level where they are accurate.
Montana Gold bullets are designed for accuracy and nothing more. They are quite accurate as well. When looking for something that expands you should be looking for XTP, Gold Dot and bullets like those.
I normally load MG 124 gr. FMJ with AA5 powder.