Thread: 338 edge std neck size or bushing die

The bushing dies allow you to use more or less neck tension and allow for different Thickness brass neck wall. Don’t think the Redding’s bump the shoulder but the Forster do. STD neck sizers are usually std spec so will work for everything. Only neck size brass shot through your rifle. Usually full size after about 4 firings or if the bolt is getting harder to close on a round.