Re: Hone Dillon 308 Die
Modifying dies isn't my idea of a good plan. But if you want to, I say try it anyway. No better way to learn.
My solution is to live with the die's neck diameter, but back the F/L die off so it's only resizing the very end if the case. This will provide an alternative way to reduce neck tension and also confine the work hardening to the part of the neck with might be expected to get trimmed eventually with brass growth. The unsized wider portion also serves to center the case neck better in the chamber throat.
When the shoulder grows enough to influence chambering, reset the die to bump and size f/l, then return it to the end-sizing configuration for subsequent reloadings.
This is not some whacky Rube Goldberg approach but, in fact, a very old BR shooter's way to deal with excessive neck tension, dating from the days when bushing dies were still a thing of the future. I've been doing it for as long as I have been handloading, as a lesson my Elder Brother, an old-time BR shooter, taught me.
Greg
