In the middle 1860s the number had been reduced to four or six heavier guns such as the 7-inch rifled-muzzle-loader.
Kwimibindi yee1860 inani lancitshiswa ukuya kwisine okanye isithandathu semipu enzima njengesilayishi esinomlomo wompu osikwe amaqoqo esizii-intshi eziyi7.