Slings (skill)

The Slings skill governs how good your character is at firing stones and sling bullets using a sling, which is the only weapon that falls under this skill. It crosstrains with the Throwing skill.

Slings aptitudes

From in-game documentation:

Hu	Ce	Dg	Ds	Dr	DD	DE	HE	SE	Fe	Gh	Ha	Ko	Mf	Mi	Mu	Na	Op	Og	HO	Sp	Te	Tr	Vp
0	1	-1	-1	-1	1	-2	-2	0	N/A	-1	4	2	-2	1	-2	-1	0	-3	-1	2	0	-4	-2