Not sure if this is the right place for this but here goes:

I know that Hammett uses a mixture of Randall and Mesa Boogie amplifiers, which I'm assuming is where he gets his distortion. But in terms of tone, has anyone had any luck mimicking his clean/dirty sounds?

I'm thinking basically in terms of amp settings. Any help would be appreciated...haven't seen much online about it.
Paul Reed Smith CE-24 2005 and Santana SE with Seymour Duncan pickups.
Line 6 Amplifiers
Boss Effects and Steve Vai's Wah Pedal
Dunlop Picks and Elixir Strings .48

He doesn't use a lot of mids. I don't think he's really used any mids since 1984. Gain levels aren't stupidly high either. Enough to make it sound big without losing clarity.
"Air created the greenness. And once you've got something, that leads to otherness." - Karl Pilkington.
Use the settings thread in Guitar Gear and Accessories. There's a link in the Rules and Resources sticky.