I plan on resizing. 223 brass. From what I gather all you need is a good lube, a trimmer, and some .222 dies.
Try Prophet River, I got Winchester 222 from them. Their link is at the top of the page.
I wouldn't bother with any brass other than Lapua.
I was in the Wholesale Sports Edmonton north today, they had four bags of Winchester .222 brass. 100 cases per bag for $44.95.



























