:deadhorse:
Well, you need to give us more info, saw chain is not saw chain... there are a lot of different types, and each has their own positives and negatives. Stihl Chain is some of the best out there, if not the best for general work (not talking race chain, or carving, or concrete cutting). Oregon is good chain, don't get me wrong, its just not a sharp out of the box, doesn't seem to stay as sharp as long (chisel to chisel), and will stretch more than Stihl chain. It also doesn't have the "Oilomatic" system the Stihl's do, which for your 270 won't really matter, but when a big saw get a big bar on it you need all the help you can get.