Ah ha. I'm catching on. Sorry if I missed a previous discussion of this.

Not looking at a Remington, but it was ad copy of that era that caught my attention. Wondered how 'decarbonized steel' could be an effective sales pitch.

Appears to be jargon of the era. Decarbonized steel is simply steel it would appear. Refers to way in which the proper carbon content was achieved.

Thanks for the info and references... fun reading.

"The price of good shotgunnery is constant practice" - Fred Kimble