Musketry is the use of rifles against a enemy in volley fire beyond 600 yards-beyond the range wherestandard grade rifles and ball ammunition can be assured of hitting a man sized target. This tactic would beapplicable to any iron sighted or scoped rifle in the .30/7.62mm range of calibers. The tactic fell out of favor for the most part during World War One when trench warfare consumed so much war materiel and somany lives, conscripts were simply armed, made certain they could shoot out to 100 yards or so andshipped to the front to be expended. Rifle marksmanship was never a strong suit for most armies; GreatBritain lost the edge painfully acquired from Boer Commandos after 1914. America and the US Marines inparticular tried harder to maintain their marksmanship standards; Sgt. Alvin York is one notable exampleand one US Marine regiment stopped two German divisions with aimed rifle fire.
Rifles can use scopes, and typically modern armies have access to machine guns, artillery, air support-we won't. There are millions of M-14s, M-1s, FALs, G-3s, M-1903s, Mausers, Enfields, Mosin-Nagants, andthe older rifles in particular were made to shoot at groups of enemy soldiers at ranges beyond 600 yards-those 2000 yards sights weren't installed for show. For Patriots sorely lacking in heavy weapons, hitting enemy forces past normal engagement ranges is too valuable a tactic not to be revived.