Thanks for all the responses. Sorry for the delay been so busy looking for work. The picture below is exactly what I see on my brass. I called RCBS and they told me to send the die in and they will polish it out. So it sounds like a die problem... bummer. Yea not new to reloading just new to this forum. Yes I always clean the dies using Birchwood Casey Gun Scrubber which works well just protect your eyes. I am using RCBS lube. Also using graphite coated #9 bird shot to lube inside of the neck but does not work to well. It takes considerable force (upstroke) on a RCBS Rock Chucker to remove the case from the sizing die this maybe related the the lines in the neck and the extra friction
it causes.
-splatman
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