Not exactly according to the 20th Edition of the Blue Book. Nikko was a brand name used by Kodensha to market guns independently of Winchester. Kodensha, in apparent violation of its agreement with Winchester, made and distributed guns to a variety of dealers and companies.KJB said:And, didn't Nikko produce a 101 for a year or two?
You can read the full text here:
http://store.bluebookinc.com/downloads/ ... 07&Level=1
I can't answer the questions about stock dimensions only to note the 101 has a reputation for being a hard kicker. My recent purchase of a three barrel skeet set leads me to conclude that their stocks are often quite short which may have something to do with that reputation.