Hi. I've got two of the Uberti 1885s in .45-70, and two Browning (Miroku) B78/1885s (.45-70 & .30-06.) Another notable difference in the Italian model is they return to half cock upon closing the action, whereas the Brownings will remain at full cock (I'm guessing the Winnie 1885 does as well.)
As to the OPs original question...my Uberti's are both real shooters. I've put an MVA #130 rear tang sight on one, and I'm putting a Shaver Economy Soule on the other (globe front sights w/changeable inserts on both.)
Ed