This is an easy one for me, since Ive been working on such a plan for many years and I'd made my choices.
Bottom photo, left to right:
44 Special
Ideal, 429421 1C, hopefully to be replaced by a 4C arsenal copy some day
Arsenal, 432-210 RF 4C
357 Mag (revolver/carbine) also includes limited 357 Max carbine use
NOE, 360-180 WFN 4C, 1GC/3PB (one each shown)
Arsenal, 358-158 TL RF "RDO Clone" 4C (meant to replace both my LEE 358-158RF and 358-58TLSWC)
*NOE, 360-190 RF, RDO copy, 2GC/2PB (with plans to convert to 1GC/3PB) NOTE:
TOP PHOTO, added late
30/30 Rifle
LEE, Ranch Dog Outdoors 311-165 TL RF 6C (final of three or four versions)
LEE, C311-113 RF 2C, (modified to remove GC, which makes it 118 grains now)
222 Remington Rifle
LEE, 224-55 RCBS Copy 6C
LEE, 224-50 RF Ranch Dog Outdoors original
*I had replaced an original RDO 360-190 RF, which was a marvelous carbine bullet, but cast very under-sized, except for in a really tight-bored Rossi 92, with the NOE 360-180 for dual-purpose revolver/carbine use.
@CWLONGSHOT showed pics of his RDO 360-190 and it prompted me to go looking for a better copy of that mould for the carbines and found one in stock at NOE. I couldn't help myself. If I had to give up one of the other 35 cal. moulds, it would probably be the 158 grain RF. I get good service from the 180 grain WFN from my 3", 5-hot 357 Charter Revolver pushing the 180s to just under 1kfps, but the 190 is too long for that. I suppose I may just keep three 35 cals, even though I was committed to limiting each caliber to TWO moulds. If I were to give up one of the 44s, it'd be the 210 RF, and if I ditched a 22, it would be the 50 grain RF. "Succession-planning." I do plan to add a 2C or two in 35 cal for a back-up, last ditch kit "just in case."
I have no intention of PC'ing all of these on a regular basis. Tumble-lube works a wonder on all of these. Since I was experimenting with PC, I coated a small batch of each of my "final choices" just for giggles, and I may try to speed up a load for the 22s and see how that goes. The only ones intend to continue to PC are the two heavy 35s for suppressed use.
This collection provides me a very wide range of usefulness - more than I NEED actually, but the versatility is nice.