Well crap! I posted the following just before the server went tits up and it appears my thread got lost.
Maybe it'll come back, but since I planned to start this project this weekend I thought I'd just repost in hopes of getting some help before I dive in feet first. So, here's what I posted a couple of days ago...
Hi guys,
I recently picked up a used NEF SB1 break action singe shot for a fun little project. I originally got the idea from a thread here on ARFCOM.
http://www.ar15.com/forums/t_6_1/378160_Is_there_any_tactical_SHTF_value_to_a_single_shot_12ga.html&page=1It has no real purpose other than I just wanted one, and that I wanted to use a cheap little project gun to tinker around with and use to experiment for some future project ideas. The idea was for a short barreled version SS just to have as a simple little "SHTF" gun. Like I said, no real purpose.
I had planned to buy a standard one and cut the barrel and install a new bead myself (another thing to practice doing) but this one was already cut down and was the cheapest one I'd found so far, so what the heck.
But anyway, I picked this one up, already cut down to 18 5/8" at a pawn shop for $80 OTD.
One of the things I wanted it for was practicing my technique of doing a home Parkerizing job on it. This gun was perfect for my needs because, it was cheap enough, it's in pretty good shape, but needed the barrel refinished. It seems that at some point it had some rust that the PO decided to scrub off. So, it's been sanded or steel wooled down and all the original finish is gone from the barrel. The good news is that there isn't really any pitting on the outside, just some discoloration. And the blasting and park will take care of the outside, and the bore is bright and spotless.
The receiver is color case hardened and is in good shape so I was considering just leaving it alone and just doing the barrel. But the more I think about it I think I would prefer to have the whole thing Parked to match.
Now, I'm no stranger to guns, or working on guns of all types. I'm not a pro, but not a "Bubba" either. I've detail stripped most every gun I own at some point or another, tuned the actions of many, including many S&W revolvers, Ruger revolvers, shotguns, rifles of various types, auto pistols of various type, etc... Just throwing that out there so I don't get a bunch of recommendations to "take it to a smith..." I am just a hobbyist, but a conservative one, and not a dumbass...
So, don't worry, ok?
Anyway, before I start punching pins and launching springs, and because this action type is a little different than what I have experience with I thought I'd ask for any pointers on disassembling/assembling the action. Any specific order to remove or reinstall the pins? Any pitfalls, or difficult things to get back in correctly? It may all become readily apparent once I start, but you just never know these things until you're neck deep...
And I'd just as soon avoid the frustration if someone has warned me about what to look out for... like that spring that WILL launch itself into outer space... or the "if you don't get this oriented JUST RIGHT it won't work when you're done" type thing... I'm sure you've all been there and done that, so you know what I mean. 
I looked around on youtube and found one video, but he has the whole segment where he assembles the action in super fast motion so you really can't tell what he's doing. Someone commented about that and he said something about "liability". But other than that, Google hasn't turned up much other than the factory exploded parts diagram, and you know how those are to use as an assembly guide.
So anyway, any advice, warnings, and/or pointers would be awesome!
Thanks...
Oh, and one other thing I forgot to ask originally. In parking the barrel, which I plan to do this coming weekend if all goes well, I've noticed the ejector mechanism is integral with the barrel underlug. I see a couple of roll pins, but I'm not sure how the rest of the mechanism is constructed, or how it works. It would appear that it would be under a good bit of spring pressure when I observe the force with which it ejects cases, so if it is disassembled, is it difficult to reassemble? Any tips, or things about this part I should know?
