Long range reloading dies

[MagnumManiac]

As far as having dies honed. Does that need to be done to my rifles chamber? or is it just to smooth the surface of the die for better sizing and longevity.

Honing dies in the neck, guarantees you are not not moving the brass excessively and gives you the correct amount on interference, I aim for .002" movement less the .0005" springback, however, if you have a sloppy chamber neck where the brass expands more than .005", you are wasting your money honing a die.
This is how honing works and how to calculate the neck size portion of the die.
You choose your brass, skim turn to clean up 80% of the neck, or whatever you do, measure the brass neck with your chosen bullet seated, then subtract whatever the amount of interference you need, say .003" and that is what your neck is honed to. I have 4 sets in 300WM that run .0005" MORE interference progressively. The reason is, I hate bushing dies, I have my reasons, which I will not go into here, but this is what I do and the most important thing is, choose your brass carefully, as brass thickness changes between brands.

Cheers.