I try to keep it as simple as possible to cut down on the work part of it for rifle. This sounds like alot of work, but with 2 guys we prep about 800 cases an hour running like this. The ONLY thing that could make this faster would be a Dillon trimmer sitting on top of my progressive press.
Tools I use:
SSTL media wet tumbler
WFT2 case trimmer
Lee single stage C press
Hornady LnL press w/ case feeder
RCBS crimp cutter in drill press.
Lee Universal decapping die
Sizing dies
Homemade lanolin case lube - 1:8 99% alcohol/lanolin oil mix
Case gauge - for every 100th or so piece just as spot check
First off, range brass. I decap any range brass I pickup on my Lee press. This keeps the dirt and other crap from range brass out of my progressive. Once thats done, any 5.56/.223 gets the primer pockets de-crimped, whether it says .223 on it or not. Ive found that having nice even primer pocket edges really helps when priming. Once this all done, I throw it all in a bucket of hot water with Dawn dish soap to get the dirt and grit out of and off of the cases which keeps my sizing dies from getting beat up. Wash and then rinse well with cold water, and let dry.
Now that the range brass is clean enough, I will mix it with my own brass that I keep off the ground with a brass catcher. Lube brass with lanolin spray, let dry and dump into case feeder on the LnL. I run the Lee decapper in station 1, and sizing die with decapping pin removed in station 3. The reason I dont size in station 2, is that it gives me a view of the case neck before it gets sized when the brass comes up into station 2, and that will allow me to cull any junk cases with bad necks before they gets sized. Same thing goes with station 4, I can see the necks after sizing. From there my buddy will trim to length with a WFT2 trimmer chucked into a drill in the vise. We trim EVERY case, whether it needs it or not as the WFT2 will only cut the case if it is needed. This is much faster than measuring or gauging every case. I do not deburr or chamfer cases. The SSTL media does that for me, and when loading BT bullets its good enough. My tumbler can run about 800 cases in 2 drums, roughly an hours worth of prepping, so into the tumbler for 4 hours, and you have factory clean brass that is ready to load.