problem loading m1 carbine

[MH357]

I got a set of used steel lyman dies, the resizing/deprime die (lyman 30 m1 fl), new winchester brass a lee trimmer as well as a rcbs trimmer witha 30 caliber pilot. After resizing the new win brass the pilot of either trimmer will not fit in the brass case. What am I missing? I'm thinking of expanding them a little in order to trim them.

Any idea whats wrong.

Thanks,

Mike H

oh almost forgot the pilots will go in the brass before going through the die.