I shoot often, so naturally I need to reload ammo often. Probably at least 100 rounds per week depending how much I shoot. I’ve been shooting a lot of 9 over the past few weeks so today I needed to do some reloading.
I start to reload some cartridges this morning and noticed a strange vertical pattern of lines down the case from my resizing die. I’ve never seen this happen before.

Then I get not one, but three cases stuck. All nickel plated brass(which physically looks great.) For those who don’t reload- a stuck case is awful, it taken time and pain to remove it from the die.
I finally managed to get them all out. I stopped reloading. I e-mailed Lee Precision(the manufacture of my press and dies) and Peter suggests the dies may be dirty. So I sprayed them out with some Gun Scrubber.
When I actually look inside of them they was a brass ring of just case debris that has built up.

I managed to get it out using some 800 grit sandpaper, pen and some Hoppes 9.

I set the die back up and everything is working perfect again. No more scratches on the case.