Re: Neck sizing die question?
The Redding S-Series dies are great. The only problem is paying for a selection of different size bushings. Brass thickness varies quite a bit, and sometimes using a different brand of brass will require using a different size bushing.
As a general rule deduct .002" - .003" from the diameter of the neck of a loaded round. However, as Keith said sometimes a larger bushing will work better on the larger calibers. Most experienced reloaders can select the best bushing to use by the "feel" when seating a bullet. Remember to clean the inside of your case necks.