for huntinG a 92 is lighter (very important), more comfortable to carry, more compact, more equilibrate...it is really a much more advanced and better designed gun.
it is a little gun with a lot of power, not in vane, it was widely used until recently in hard environments by many shooters in PERU and ARGENTINA, in the jungle, hunting PUMAS, as what you need there is a compact and powerful gun.
a 73 is bulkier, heavier...not so ergonomic...i think that a fast action is not the most important thing in hunting, as with that in mind, bolt actions should not even be regarded..
that is why a good advice for CAS may not be so good for hunting or for BULLSEYE....every discipline has the right gun for it..
i remember that the 92 was carried also by many prison guards until well into de 1970´s in Patagonia, Argentina....in some cases guns with 70 years that standed hard use...and still could be trusted.
the originals are much better than italian copies...these last are made by CNC machinery from extruded steel bars, with no forging..the old winchesters had their frames forged, from round bars, making frames as strong as dynamite, at a time when MADE IN USA meant tools of any type made to last and last....
as far as i know, modern WINCHESTER 92 are made in JAPAN with japanese quality, by MIROKU, and i would prefer one of this over an ARMI CHIAPPA.
all the best