I read Outdoor Life as well and caught that article. I have used the .270 Win for over 25 years with several rifles ranging from ones off the shelf at WalMart to a custom built. I have a few statements about the article:
1) I have experienced different results in testing than the article states, even with a few factory loads at least one of my .270's will hold a 5 shot group at or slightly under 1/2" @ 100 yards
2) If I invested the type of money they did in their test rifle and it only printed a .62" group @ 100 yards I would not be happy, .270 or not my gut feeling tells me something is not right there
3) Even so a .62" 5 shot group is not shabby, the 3 shot group I bet was under 1/2"

Here is the article for those interested:
[link]http://www.outdoorlife.com/outdoor/shooting/article/0,19912,768584,00.html[/link]