The Collaborative International Dictionary of English v.0.48:
Musketry \Mus"ket*ry\, n. [F. mousqueterie; cf. It. moschetteria.] 1. Muskets, collectively. [1913 Webster] 2. The fire of muskets. --Motley. [1913 Webster]WordNet (r) 3.0 (2006):
musketry n 1: musketeers and their muskets collectively 2: the technique of using small arms (especially in battle)