A turret isn't as fast as a progressive. You can use it a couple of ways: batch work, like what you are doing, or you can go for efficiency. That means, handle the case fewer times. If you have an expansion die that you can put the powder charge through, you only have to directly handle the case when you put it in the shell holder and when you take it out as a complete round.
I'm not completely convinced that is always faster, though.
<- reloads on a Redding T7.