There are 3 versions of SL's available. Sportsman's warehouse sells the black stock stainless model. Cabelas sells the camo stock stainless model. Bass pro shops sells the black stock with black coated stainless metal.

Barrels as noted above are Sank Finnlight barrels.
The wife's .308 has shot several factory loads and several hand loads around 1/2- 3/4" 5rd groups.

She uses the 150TTSX for deer and it routinely shoots one big hole.

Hell I started her on some old crusty Sierra 130 gr HP's (old green cardboard box) loaded on minimum loads of W760 and the damn things go under 1/2" all day with dick for recoil.