I am finally moving forward again on a 7WSM build I have been kicking around for ages. I want to buy the reamer for my barrel so that when this one is shot out I can chamber the next one to the same specs. I planned to order from PTG but what is the difference between a solid pilot reamer and a removable pilot? Is one preferable to the other for any reason? I am planning on a Brux barrel and having it chambered, something like a fluted #4 or #5 contour in an effort to keep weight down some. Also, and recomendations for specs regarding neck diameter? I will be turning necks anyway but this is a hunting rifle first and foremost. Action is a trued and timed long action Savage. Stock will likely be a Stockade.