gauge cleaning

I was checking a sample round last night and used one of my chamber gauges.  It didn't plunk in which seemed odd, so I tried another which it passed.  I looked carefully at the first one and found an accumulation of lube on the edge of what would be the chamber end.   

I'm sure it is basic reloading knowledge, but I had never thought to check the inside of my gauges prior to testing crimp/plunk.

I don't know if i would classify it as basic reloading knowledge, Aprilian, as not everybody runs into that issue.
I reload well lubed 185 gr H&G#130 button  bullet and learned long ago that a small bell will generally leave a bit of lube on the outside of the case mouth so I clean out any lube in the seating die & stem every box of ammo loaded. Enough lube inside the seating die will result in the OAL increasing. Good practice anyway. I inspect the crimp die about every 100 rounds. This avoids any lube getting to the case gauge.

Yep, when loading zeroes the Wilson gauges get gummed up after a while.

Dardas here.