I just inherited a P/W 600B progressive press from my wife's great-uncle who passed away this last winter. I got it set up last week, and it took a little learning to figure it out, but once I did I was turning out picture perfect factory-quality loads at a rate of 75 in 10 minutes and the company claims 500 per hour! It's a top rate piece of equipment, I wish I had one when I was shooting more in high school and college.
Selmer