So dwarves just grab from the nearest stockpile, which means a lot of expensive bolts get shot at practice targets OR a lot of wood bolts (not very effectively) get shot in combat. The current Steam version (unlike legacy versions) does not allow designation of ammo for squads or hunters. As far as I can tell legendary mason does nothing for you, except MAYBE construction speed. A mood where a dwarf takes over a stoneworker shop and crafts a piece of furniture will bump that dwarf's skill in mason to legendary, not the stone carving skill which is actually used for making stone furniture. Note: There is a bug involving strange moods and these skills changes.

Stonecrafter: Anything made with stone in 'Crafter' workshop.This is NOT for stone crafting at the crafter workshop. Basically anything else in at a Stoneworker workshop. Stone Carver: Should be called 'Stone Working' to match the Stoneworker workshop's name.Notice this word doesn't match anything else in the UI. Masons: Build walls and other constructions with stone (sort of like old Building designer skill which no longer exists).Engravers: Engrave smoothed walls, same as before, and rock slabs.Stonecutters: Smooth rough stone walls AND oddly enough make blocks at a Stoneworker workshop.

Dwarf fortress plump helmet item id