 Nyorera kupfuurira kweiyi ndima - Munguva yePeninsula Campaign, Hondo yePotomac yakanga yakashongedzerwa neanopfuura 50 neEnfield neSpringfield rifles, nepo Hondo yeNorthern Virginia ingangove yanga ichishandisa pedyo ne40 smoothbore muskets. Izvi zvinogona kutsanangura huwandu hwekurasikirwa mumatambudziko eSeven Days 15,000 Union casualties vs. 20,000 Confederate. NeHondo yeAntietamMuna September 1862, Hondo yePotomac yakanga yakanyatsopedza masiketi akajeka kunze kweIrish Brigade, iyo yakasarudza kuramba ichishandisa Model 1842 masiketi mu1864. Zvisinei, mishumo yezvombo inoratidza kuti mapoka 40 muArmy of the Potomac akanga achiri kutakura.69 caliber muskets paGettysburg uye vamwe vakatozosvika kuOverland Campaign. 