Everyone has their favorite lube, IME Redding Imperial Case Wax and Redding's Imperial Dry Neck plus Imperial "Application Media" work great for me.
For a bolt action rifle, you only want to neck size most of the time. Full-length re-size only as needed (4 or 5 cycles?). If you haven't bought dies yet, I would suggest looking a Forster's Neck Sizer & Bench Rest Seater 2-die set and then add an RCBS X-Die for full-length sizing. In .308 Winchester, the X-Die almost eliminates the need to trim brass - basically you do it once. Trimming brass is a huge PITA and I expect that you'd get the same results with .223. The Forster BR Seater is a "better mousetrap" - same design as Redding's Competition Seater but no micrometer and half the cost. The case and the bullet are centered much better than other seating dies do.