Hello eveyone new the the forum here. I have been reloading for about 5-6 years now on the dillon 550b no complaints but thinking of getting the case feeder but not sure how its working. None of the guys I shoot with use them other then a couple who run the 650. I load around 1500-2000 rnds a month from 9mm-45acp so how hard is it to change calibers? Thanks for your help