I would say try Lee 2 cavity. You can get 3 molds that have the handles already on them for less than the price of just one of the others.
All 6 of my molds are Lee. My fave is the 45-70 405 grain HB single cavity nose pour. My Marlin shoots them well.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.