[MikeSRuth]

hey folks I have been experincing and odd issue with 9MM once fired cases, but first...Lee Equipent, Press, die, expander. All brands of cases from my indoor range so there is no dirt corrsion issue.
I full length size and decap, then wet wash, then air dry in a custom boix and then store them away.
When ready to use, I use the Lee powder through expander to expand the case mouth and insert a primer on press in one step. Quite often a large batch of several hundred.
I use poly coated bullets from "the blue bullets" and they are a mazingly accurate on diameter, .3545 just every freaking time. I have loaded thousands of them.
OK so the problem is when seating with the Lee die in place I'll go to set a bullet and it almost falls into the case! It's as if it was never sized and that's just not possible. They don't go anywhere until they are FL sized.
I have to stop and pull it usually by hand and or I'll set it asside for later to pull, resize on the same die with no pin in it and all is hunky dory.

Any Ideas? More of a PITA than a concern. If I do slip and pull then handle I know it's bad and set it asside.

Thanks, Mike R