Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Currently how I build Ashe. Seems to work well. Skills change depending on if I'm killing by level 10 or so, if that is the case, then I go frost shot more, but overall, this is the general rule. Overall, I find that if your team is pretty good, this build of ashe can carry quite well. If not that good on both sides, she can usually solo 2-3 people at full build.
Questions/comments, send em on over.