I use an antiseize on all my nipples. I just use some I picked up at Auto Zone for about $3. The tube will probably last me the rest of my life.
I'm like Cayugad, I swab some RemOil down there and leave it. Just like my centerfires and rimfires. Getting ready to shoot, solvent or alcohol down the barrel on a patch, with a dry one or two after.
I haven't found any rust yet.