Another vote for Barnes. IMO, you can't go wrong with any of their ML bullets. But there are a lot of great bullets out there that will get the job done just as well. Some like the Hornaday XTP's for their inexpensiveness and good performance. Some like Powerbelts for their great accuracy. It really depends on what shoots good in your gun and what kind of performance you're expecting.

My advice would be to search this forum with a word like "bullet" and read about other peoples experiences. Or you can search by brand name. Then get a list of the ones that sound good and buy a package of each and test them out.