I neck size only on my 223,s and 308, all are Savage bolt actions. I also use only the Lee collet neck sizing die on themthis way I save the mess of using a lube. Accuracy is superb with these dies also.
I plan to add them to my other bolt action calibers soon.
My 270 and 30/06 are still being sized with RCBS dies but I have them backed off slightly so that they only get a partial sizing, this keeps them fitting a little tighter in the chamber without being difficult to close the bolt.