Just casting accurate lead bullets can be trying to say the least.
Maintaining mold temps, alloys etc. can be critical. All my match bullets are weighed and culled as required. Quality jacketed bullets are going to highly consistent in weight. The differences in velocity comparatively are not even close which leads to it's own set of challenges. Throw in bullet lubes, seating depths,powder types and charges, et al and lead bullet shooting can be a challenging but a rewarding venture.

Dodging lions and wasting time.....