oldcrankyyankee said \
 3, I have an 86 in 45-90 letters with a 30″ extra heavy barrel, would YOU put it on it?

  

  

Not any sort of vernier sight; it might have been done by a green shooter with no practical hunting experience, but that doesn’t make it typical, much less sensible.  A plain-Jane Lyman #1 would be appropriate, suggesting a skilled rifleman wanting something better than standard sights.

That number #36 (actually, #38) is an anachronism if applied to any but late production Mid-Range Verniers, as that is the term used in catalogs until after WWI, when some (probably) newly-hired whiz-kid decided the old-fashioned names weren’t good enough for “modern times.”

I believe Mid-Ranges are now selling for $500 up.

TR said
 The Lyman N marked tang sight is best because it does not have to be folded back to work the action. Also cheaper and commonly installed on the 86. T/R

  

Correct for an ’86, but may not be much cheaper, as the “N” usually sells for twice the price of the common #1s.  Marble’s “Flexible” tang sight was built to bend back if struck by the bolt, but the Lyman is the one I’d prefer.

oldcrankyyankee said
Well thanks for the advice. just seems that a rifle with a 30″ xh barrel should have a tang sight. 

  

That or a rcvr. sight like a Lyman 21, but not because of its brl. length, because it’s a far superior sight regardless of brl. length.