I've been working primarily on .224 valkyrie loads lately, and realized the expander ball on my decapping stem was not opening up my necks enough to give me the neck tension I was looking for. I am using new Hornady brass, which doesn't show signs of being annealed at the factory. After running through my sizer die (RCBS), my neck i.d. is still .219. I bought an expander mandrel from 21st century which measures .223, but it has only increased my neck I.D. to .220. Would annealing my cases help prevent all or most of the spring-back I'm getting? I would like to get my finished neck I.D. to at least .222. I have access to an annealer, I just didn't expect to need to use it on new brass.