Of course, by the Boss, I mean the wife...
and Her 500E is a 410 pump I acquired for her about 20 years ago for a house gun to keep handy while I was working patrols, either evenings or midnights. It has been a great little gun, and since I paid $15...
We have really gotten our money's worth. I can explain the great price if anyone is interested... 
Anyway, Miss T took the Pump out this afternoon to take care of some farm business, and brought it back in to tell me that it wouldn't fire, 
and the action was jammed.
She swapped guns, leaving the shotgun with me, and headed back out with the CZ455 with the Nikon scope. That combo is deadly on farm problems as well.
I took the shotgun out on the deck, pointed the muzzle in a safe direction, and cleared the single round in the mag tube, then with a little effort, cleared the round in the chamber. Back to my office and looked the little gun over. 
The action felt "gummy" to me, so I set the 410 in the rack on the bench and did a quick search, and watched a disassembly / reassembly video on You Tube. Hmmm, doesn't look too bad.I gathered my tools, and got busy.
Yeah, yeah, I know; Gee Marine, YOU had to Watch a YouTube Video...? I know handguns pretty well, but I don't do that much with long guns... unless you are talking about the AR, and then it's still been a while. These days, when I take the Henry's apart for detailed cleaning... I WATCH those videos again.
I took my time and followed the steps I had just watched, and it was fairly simple, just as promised. Once I had the parts laid out on the bench, it was obvious why the little guy had jammed... there was gunk built up all in the trigger assembly, on the bolt group components, and the various components of the pump mechanism were coated. Dried powder and old lube, mixed with grit mostly.
Over the last few years, I had cleaned the barrel, the bolt face, and the like, but hadn't detail stripped the gun since I bought it. It hadn't been SHOT that much.
I cleaned EVERY thing, and reassembled the gun. The action was smooth, the functional check ... Check. I got five rounds of #4 and took the gun back out to the Coop Area and gave the boss her gun back. I asked her to test 'er out and she gave it a work out. She was happy. The action cycled the shells smoothly and the gun went boom when she pulled the trigger. Lesson Learned.
A few months ago, I took the handguns out of the safe and inspected them all, went over those that needed cleaning, even if they hadn't been fired. I wiped them all down and put them back to bed. Guess the long guns (even NON-Henry's) need love too.
