One thing I learned when pulling a bunch of cast lead loads; There's only one way to eat an elephant, that's one bite at a time. If you look at several hundred rounds that need to be pulled, it can be very intimidating, even overwhelming. But If you just pull as many as you're comfortable with doing at a time the task will go much easier. I've hammered out as few as 20 rounds and as many at 80-100 at a sitting. Since my collet bullet pullers don't work very well on cast bullets I use an inertia tool (hammer type). I use a lead "anvil", a lead puck or ingot to hammer against. Much quieter and had no effect on bullet removal. I don't like hammering, of any kind, on cement, banging on my bench is loud (and makes my CD player skip) and banging on steel with a plastic mallet just doesn't feel right (I'm a life long machinist/mechanic that used hand tools and power tools for over 50 years to make my living). Take your time, do as many at one time you feel like doing and before you know it, the task is done...