musketry vs proficiency

musketry and proficiency both are nouns.

Word	Noun	Adjective	Verb	Adverb
musketry	Yes	No	No	No
proficiency	Yes	No	No	No

As nouns, proficiency is a hypernym of musketry; that is, proficiency is a word with a broader meaning than musketry:

musketry: the technique of using small arms (especially in battle)
proficiency: skillfulness in the command of fundamentals deriving from practice and familiarity

Other hypernyms of musketry include technique.

musketry (noun)	proficiency (noun)
the technique of using small arms (especially in battle)	the quality of having great facility and competence
musketeers and their muskets collectively	skillfulness in the command of fundamentals deriving from practice and familiarity