I am starting reloading my 300 RUM. Today I was full length resizing my brass (rem cases), and had a bear of a time getting them out of the sizer die. MAJOR effort! the downstroke seems pretty normal, but once the case neck hits the expander on the way out, it takes a major pull to get it out. Some were worse than others. I ran into this mainly on 2x fired brass (factory load, then reloaded once and fired). What am I doing wrong, or should be doing different? Inside neck reaming maybe? is this done before or after resizing? My best load so far is 90.2 gr of H1000, 200 gr SMK, Fed 215M Primer. no chrono yet, but 3/4' group.