Pzwest, last para; "superficial rust"...some rust is always going to get at you, especially on any bare metal. I never saw my M-46 clean..and some things as tow cables, headlamp brush guards, grill door handles, spare cal 50 barrels and tools always had surface rust somewhere. That's the reason constant cleaning of MGs and swabbing & oiling the gun tube & cleaning the breech assy is always a priority. Ammo also has to be pulled and cleaned, especially in the M-26-45-46 wells under the turret when you have forded a couple rivers. Bullet strikes were normally holes in the sponson boxes or oil/water jerry cans. Pioneer tools were rarely in the rack, but normally shoved into a sponson box. Would have been nice to have had a "base" to go to and get everything cleaned up. In Korea, during the Monsoon season, we filled our left front sponson with oil and dumped the tools into it....and tools still collected rust.