An Examination of Collegial Dynamics as Expressed Through Marksmanship, or, Ladies' Day Out — S.L. Huang

Cas teaches Pilar to shoot. Considering Cas is an acerbic mercenary and Pilar is a delightful admin, this goes about how you'd expect.

This 8,000-word novelette is a companion to the Russell's Attic series and takes place between book 2 (Half Life) and book 3 (Root of Unity). The best time in the series to read it is between books 2 and 3 or directly following book 3.