The results are surprising to me. The majority deprime as a separate operation even though I would have expected the bulk of cast bullet users would be shooting pistol rounds.
I understand, and in fact perform, more anal brass preparation for rifle calibers. With pistol rounds, the benefits of cleaning and/or conditioning primer pockets seem marginal and not worth the effort. The downside is reduced production when using a progressive machine.
Most of my pistol loading is on a Dillon 1050. I average about 600 rds/hr. If I deprime on a single stage, it would take me about an hour to do 600 cases(10 seconds/case). Effectively cutting production by 50%
On the Dillon 550, I average about 300/hr. Production drops by 33% if I were to deprime separately.
Don Verna