The only non-lead bullets I've shot in the last 18 years was some 9mm for a brand new gun to test 'er out. If reloading and casting are just to save money, don't bother. If money is yout only motivation, buy ammo bulk and on sale.
I reload because I like it. I learn a lot about my guns by reloading. It's a quiet, relaxing time with myself and my "gun stuff". I enjoy casting my own bullets too. I have learned a LOT about my guns from shooting cast bullets. I can reload custom ammo with my hand made, perfectly sized and lubed lead bullets. I can customize my loads for a particular bullet in a particular gun and get way better "customer service" than any commercial caster/factory ammo manufacturer. And bottom line, I "keep in touch" with my guns when I can't go to the range, daily if I want. Even if factory ammo were cheaper, I might still reload...