When I was loading .223 by the bucketful, I used Frankford spray lube. Cases in 9x12 pan, generously hose on the lube, shake and rattle a bit, let them sit 5 minutes, and load. Generally worked OK except of grossly oversize cases. Messy to handle. Made a mess in the tumbler requiring frequent changes of media. Now I'm using some of the 'little bit'll do ya' grease with much less mess and much less sizing effort. Another consideration: recently I'm loading in lots under 100 cases rather than 5 gallon buckets full.