If you like to play with out-of-print receiver sights|Winchester Sights|Forum|Winchester Collector

You are generous but — wait for it — they won’t fit either Redfield. I have the distinct impression Redfield and Lyman once employed crotchety and jealous old gunsmiths of German descent who did things their way and were prone to throwing tools at apprentices. “Donnerwetter Kreutzmillion, iff dot Redfield  bastard makes it a 4-40 pitch den, Gott in Himmel, I vill make it a 3-40 pitch!”

If I did not have such a right-hand tremor (you should have seen me trying to get the elevation plate secured this morning) I’d compare some. But we’ve had a cold front come through that is giving my arthritis fits. Double espresso was strongly indicated and another one this afternoon. A good thing I’m not in the mine disposal business. 

I believe that is a Redfield 70. I don’t know the code. It looks like it might fit a rimfire bolt action rifle made from tube steel stock, like a Savage or Stevens. 

Is there a letter code stamped into any surface of the base? I think I’ve got one like it. I didn’t check to see if it would fit the Lyman 66. I did try one of the plate screws this morning on my Redfield 80 without success. 

A quick way to distinguish Redfield 80 from the earlier 70, in addition to the presence or absence of the staff release button, is the elevation plate on the 80 is held in place by one screw. The 70 has two. The difference is because the staff release button takes up too much space inside the block for a second screw hole. 

tim tomlinson said
Zeb,  Actually you would do great disposing of a mine.  Once.  Tim
  

A “blaze of Glory.” 

Steve,  you better hang onto the spare although I thank you for your generosity. I have a good supply of the elevation plate screws for the Redfield 70 and only one such sight, the one on my rice powered 1886 ELW 45/70. The similarly-sourced 1886 45-90 wears the Redfield 80. Both these are going to need higher front sights and blanks in their barrel sight seats when I pull off their barrel mounted irons.  Some folks leave those on but they get in my way, probably because I put big white golfballs up front I can see through big apertures.

My standard of accuracy for these monsters is a one pound coffee can lid at a hundred yards. Any hog or Whitetail deer at that range receiving a 300 grain 45 caliber slug in its thorax forward of the diaphragm – an area larger than said lid — if not DRT, isn’t going very far.  And I would not shoot at an unwounded animal with either gun at any distance greater than about a hundred yards. 

After firing 3 rounds of Remington 400 grain CoreLokt in the fairly light 45/70 – published MV 1900 some odd foot seconds – I’d be leary of a tang sight that close to my eye.