My choice to replace store bought hard cast bullets was to start casting my own. Now all I shoot are hard cast bullets that I've cast myself. Yes, its a bit of work. But, casting is as much a hobby for me as is reloading and shooting. Its all stuff I enjoy to do. And I'm saving a ton of money.
If I had to recommend "store bought" hard cast I'd look to laser cast, oragon trail, mastercastbullets. There are a lot of good ones available.