This probably deserves its own thread but, looking forward to next year, I expect that we will be allowed to use jacketed bullets. This is one of the changes that are under consideration and the all lead restriction makes no sense when sabots are allowed as there is no ballistic advantage to be gained with a jacketed bullet. There is however big gains to be had in terminal performance that will produce cleaner, more humane kills.
If this change happens, it opens up a whole new world of inexpensive, mass produced bullets that have proven track records. Top of my list would be the Hornady XTP in .44 caliber, 300 grain JHP (sectional density .232, BC .245) but there are many other fine bullets around as well. I pick the .44 caliber over the .45 because of the higher SD for a given weight, therefore better penetration.
This is all theoretical however; I have never shot an elk with a ML.