Speedmaster BDL. Bought it recently at a Pawn Shop, dirty thing but cleaned up well externally. Bolt and chamber area were black with dirt, ran a patch down the bore and fired a few rounds. Worked great. Wanted to know if it was ok before I took it down. Pulled the trigger assy, full of granular powder residue and dirt, had a tough time pulling the barrel from the receiver, as it was packed with 31 years of junk. Cleaned everything with mineral spirits and lighty oiled. Went back together smoothly. Bottom of pan I used to clean it in was covered with the junk that was slowing wearing down the mating parts of this jewel. One thing, when you slide the action bar off the bolt, retain the bolt or it will snap back into the forearm. It's now good for another 31 years.