Runout after neck sizing

[seajay]

I have been loading for a 308 Win. without many good groups. I checked runout on a loaded round and it was 004-005. I then checked a fired case and it was less than .0003. I did find that the neck sized case had about 4-5 thou. All of the necks have been turned to .013. All of the rounds were loaded with Wilson dies. Has anybody had any problems with these dies? I do have some older Wilson dies and the runout has not been a problem.

 

[artbosco]

All of the rounds were loaded with Wilson dies. Has anybody had any problems with these dies?

The Wilson dies that I use produce concentric rounds. They're excellent dies.

I do however, F/L size, each and every time I reload. I believe sizing the whole case, at the same time, makes for an overall more concentric end product. That way, you're not doing bits and pieces.

 

[dennisinaz]

I agree- I never neck size anymore unless I am using a bushing die for some reason. I usually have my full-length dies custom honed so that I don't have to use the neck expander- this usually results in the lowest runnout possible. I don't use hand dies so this may or may not apply to those