One way to polish the die is to wrap some 0000 steel wool on a brush (might need a shotgun brush for a WSM case?). Spin it with a cordless drill. I usually add some Flitz to the steel wool for the final polish.

This is very quick to take any high spots off, or any burrs, but still takes quite a while to get to "mirror" polish. HTH, Dutch.

Johnny, isn't a felcher a guy who makes arrows? - Dan

Sounds like your FL die may be a little too tight.....

I think your problem was probably the factory coatings in the die--akin to cozmoline. One of my hunting partners had the exact same issues, I cleaned his dies out, including getting a little goop out of the vent hole with a pin, and presto, no more issues! Minimal lubing with Imperial and smooth sailing. I have 3 different dies and have no issues sizing the 270 or 300 WSM brass. I trim with an LE Wilson/Sinclair trimmer and Wilson sells two different case holders, one for new and one for fired brass, It grows a bit when fire formed. If your chamber is on the high side of tolerance and your die is on the low, that would have magnified the problem. Good Luck--Don

Kracky, I'll bet you hit the nail on the head. With the gunk in the die, it probably stopped any air from excaping. the once fired cases were probably a little larger that the unfired ones and with the lube, created a seal. I think a build up of air pressure going in and perhaps a vaccum trying to get out made the case seem stuck.

The direction for the die do recommend cleaning out that vent hole.