Used to shoot a lot of lead, but have switched to jacketed after buying a Glock 7 years ago. (Lead & Glocks don't play well together)
The main reason I got away from lead though, is the clean-up. After shooting a few hundred rounds of cast bullets, especially out of a revolver it's a bear to clean, especially when the lead has plated all over the forcing cone/cylinder gap.
Jacketed bullets don't cost a whole lot more than lead (unless you cast yourself, which I don't) Guess it's just my laziness, but I'll stick with jacketed, thank you