Necessary mods for MKIIs?

[jpdown]

I clean off the factory metal perservative (cosmoline) used for warehouse storage on new guns. Especially the chamber, bolt and barrel. It looks like brown rust on a white rag when you clean off the first time. If left in the chamber, it along with carbon residue will build up and cause the rimfire cases to stick eventually leading to ejection problems. I also bedded the action and around the bottom plate action bolts since the bottom metal is thin and appears to flex if more than 15 lbs of torque is applied.