So anything that i can polish up, adjust to make the auto charge throw smoother or more accurate. Or cheap easy upgrades that make the process easier or better faster whatever.
I also thought of a case prep head, for sizing and de priming and another for seating and powder throwing.
I run a Dillon 550 for all my precision rifle loads. Absolutely would not use any other press, from a workflow efficiency perspective. Without being super long winded, here would be my tips for you.
1) Read the 6.5 guys precision rifle progressive press article, watch their corresponding youtube video, and read the Scott Harris article on progressive press loading.
2) Two step process is a MUST imo. One toolhead for brass prep. Then tumble brass clean. Then a second toolhead for loading.
3) Alcohol lanolin lube is your friend.
4) Sizing dies setup should be Deprime die, then FL
non-bushing die, then expander mandrel. Pick a die that doesn't oversize the neck too much, maybe only 0.001 or 0.002 past target dimension. Using this three combo of dies is the key to getting low-runout consistent brass.
5) Floating dies on o-rings is very handy, if only to fine tune headspace sizing.
6) Seating depth consistency seems better when seating effort is low. High neck tension will lead to greater inconsistency.
Upgrades I've got and value... bullet tray, strong mount, roller handle, CNC toolheads (flat top surface is easier for the o-ring), LED lighting kit.
For precision weighed charges on a separate scale, check out the Area 419 funnels. The important thing is to avoid any kernels being caught between the external funnel and the internal powder funnel that rests on the case. I fabricated one on the cheap from an MTM universal funnel kit and it's worked well for me.
