Well the gun arrived today and some questions were answered...
For starters, it turns out it is NOT a 26" barrel on an Express, it was actually a complete youth model with factory 23" barrel and 12.5" length of pull. I see this as a huge stroke of good fortune, the shorter barrel is most welcome in terms of weight reduction and I was replacing the stock set anyhow. The butt had some scuffing on it like the gun had been rattling around a lot in a quad boot. It probably was!
I do not think this gun had been cleaned since it was made in the early 2000's. It was absolutely FILTHY inside. It has definitely been shot a fair bit, but everything is still in functional shape. The trigger plate pins were frozen in place with grace and a small amount of surface corrosion. I had to use a punch to get them out for cleaning. I must have pulled half a 35mm film cup (yes, I'm that old) of un-burned powder and carbon residue out of the bolt assembly and receiver. There was a bit of surface corrosion up under the rib, and the bore was coated in carbon and melted plastic wad residue. All that said, the action remained very smooth.
The previous owned had install one of those magnetic fibre optic sights (I'm not a fan) and it looks like they had tried to unscrew the front bead, not realizing express beads do not un-screw (i.e. they are inserted into the rib and then peened in place mechanically). Oh well, despite it being a little chewed-up, it's still there and looks ok in terms of sight picture.
Of course, like all my guns, I had to tear it down to make certain what I was dealing with. Found some interesting stuff.
First of all, this is where they marked the receiver as a 16:
I've checked that it cycles ok (it does), but for some reason Remington installed 28 gauge latches. Odd. I'd have thought they would use 20 gauge latches if they did not do a run of proper 16 gauge units... but then, maybe using the smaller frame28 latches in a larger frame is equivalent to using 16 gauge latches. Dunno. But they work ok and the factory staking is intact, so it shipped this way:
They used a 16-specific ejector assembly, but unlike the vintage ones I have here for reference, this newer ejector has a shoulder on it at the back like a 2,3/4" 12 gauge ejector.
This is interesting - the action bars on the slide are not media blasted like many express units. They look to have been simply blued after being stamped out of stock without either media blasting or polishing. They are actually really smooth and likely contribute to a really smooth action on this gun. Not Wingmaster smooth, but smoother than I am used to on an Express gun. Of course, the gun is equipped with Flexi-tab and the extra notch on the action bars.
I didn't have great lighting, but here it is all cleaned up and wearing adult sized Fleur De Lis wingmaster wood with the white lines removed and a new Pachmayr Decelerator pad:
I think it looks nice, even though I've basically shamelessly copied madtrapper143. Though not intentionally, I didn't know it was a youth model before it arrived. Oh, and I took out that stupid J-lock and put in a regular safety. I can sleep better now.