Never been around one, how were they accuracy wise? Reliability? Thanks
I've owned a dozen or so of them in 243, 284, and 308. The 243s and 308s that I've owned, all post-'64 guns, have been very reliable if kept clean and not over lubricated. I currently have 2 in 308 and 1 in 243. One of the 308s has been used in herd control/reduction shoots, has accounted for well over 200 deer, and has never to my recollection failed when the trigger was squeezed. I had nothing but trouble with the 284s and found that they were very magazine sensitive in that magazines that appeared to be identical would work in some rifles but not in others. OTOH, those 284 magazines would all work fine in every 88 that I tried them in. One of the 308s had the barrel cut down to 17" by some previous owner and is very handy when still-hunting in tight cover.
Winchester 100s generally have mushy triggers and mine are, at best, 2 MOA rifles with factory ammo.
Keep in mind that Winchester discontinued the Model 100 in 1972/73, so any rifle that you pick up will be over 45 years old and the 263,000 of them that were made have been subject to a wide variety in quality of care.
I like my 308 carbine for the purpose that I use it, for still-hunting in tight cover, but wouldn't recommend that anyone jump into the Model 100 pool for use as a general purpose hunting rifle and I would be particularly wary of any Model 100 in 284.