Mine's been rid a little harder than yours John. Has a vintage Kollmorgen 2.75 power scope on it.
Here is how I use it a lot:
I'd say you're right in your statement of field use

. Nothing wrong with good solid use, oh, and great pictures! I have a set on my quad and I may put a set on my mountain bike. Handle bar mounted rifle rack. For the 'thick' west coast conditions,

I probably won't use my 4100. For the 'wet & thick', I picked up a Marlin 1895GS

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On mine, about a year before it was given to me, Dad had a similar looking K4 Weaver I believe but to assist to eye sight conditions he changed that for a 2.5-7 Micro-Trac which I still have on it. Even at that late date and time in his hunting years, he still 'mistrusted' scopes and their new fangled technology. As such, he opted for Weaver pivot mounts to allow quick access to the open sights if & when required.
The last workout mine got was a few years ago, on my first Alberta Mule Deer hunt with my Daughter & Son In Law.
Oh, as both our Daughter and Son are left handed, our Daughter has asked if I'd pass it down to our right handed Granddaughter so when my use of it is over, that'll be the 4100's next stop

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