I've been lurking and learning for a few months and now I have a question that I haven't been able to find the answer to. I am having a 25-06 AI being built by West Texas Ordinance and plan on purchasing a set of redding dies including the Type S bushing die. I was hoping to get everything ordered prior to the gun being finished in April but i was not certain what size bushings to order. I have read how to size the bushings but as I do not have any brass yet so I cannot measure the case neck thickness. I was also considering necking down Lapua '06 brass for use but do not want to turn necks so will probably just go with either Remington or Winchester and prep them. I forgot to mention the chamber will be a no turn, but a tighter neck than most factory rifles. My questions are: 1. If I were to use Lapua Brass was bushing sizes would you recommend? 2. Do you think I would have to turn or ream the necks of Lapua Brass? 3. Does anyone know the average neck thickness of Winchester or Remington Brass? 4. If choosing between Winchester or Remington Brass which one would you recommend.