I have been reloading for a while so I finally shot enough .300 WM to reload and the lee full size die has worked good in the past now it's brutal sizing the brass especially near the belt. The shoulder on the nickle brass is good some of the brass ones have little waves on them. I don't know I have not noticed the waves before on the brass before they are small but can be seen and barely felt, the brass has one firing on it and it is Winchester, the nickle is Federal. I am scratching my head, the die is clean, I am torn between tossing the brass a KM on a .300 would not be good. Anybody have any ideas on what is going on? or a suggestion? The original loads we not hot and within standards.