I know I read something on this before, but my search foo must not be up to snuff. I have a 338 LM, If I full lenght resize all is well. If I neck resize with the same loads, I get a very sticky bolt and a bit of a flat primer and some primer flow around the firing pin. I neck resize for all my rifles and never had this issue before and I am a bit confused. Needless to say, the neck sizer is in the closet for now. Any ideas or suggestions certainly appreciated.