At this point my best guesstimate is about 10,000 rds. for a year - 6,500 rds. - 40 S&W, 2,000 - 5.56 Nato, 500 - 9 mm, 500 - .45 acp, and 500 - .308.
After reading the comments here and some reviews, I'm leaning strongly toward the Dillon 550C. I think this will give me the ability to make the rounds in a timely fashion, switch between calibers, have a long-term stability, and be cost effective. I am curious however, on the value of using a single stage press like the Lee Challenger. Other than the much lower price point what is the advantage, if there is one to having this press?