Thanks for the response. I have a RCBSdie set with RCBS press,using Nosler 165gr Partitions.When adjusting the sizer die, I screwed it into the press until there was enough of the pin sticking down to push out the fired primer. We measured the case before seating bullet and it was shorter than the "trim to length" measurement in the manuel so we didn't trim any. We measured out the powder, seated the bullet and then measured the COL, and if my mind serves me correctly it was still just a fuzz shorter than the full length measurement specified in the manuel. I have a gut feeling that I may just have to seat the bullet just a tad bit deeper? or that I didnt' set up the sizer die correctly.thanks again.