I've been reloading with Whidden dies and frankly, I'm not impressed. The expanders have tool marks all over, I'm getting a ton of runnout, and I think its over working my brass.
I'm reloading in three stages. Decap, size, expand on mandrel. Its slow and time consuming.
I'm thinking about ordering new dies from forster and having them honed out in the hopes of ameliorating at least the last two problems.
What is the correct method to specify the neck diameter? I've always been told to measure necks on loaded rounds, then subtract 4 thou.
Eg; .308 lapua brass with a 175 SMK, has an outside neck diameter of .3385 (ave of 3 rounds) minus 4 thou should put me around .3345.
The hope is this gives me flexibility to change brass lots if the need be or turn the necks to even them out.
Sound right, or should I spec them larger?