 Blücher was also armed with sixteen 8 @.@ 8 cm ( 3 @.@ 46 in ) SK L / 45 quick @-@ firing guns , placed in both casemates and pivot mounts . Four of these guns were mounted in casemates near the bridge , four in casemates in the bow , another four in casemates at the stern , and the remaining four were mounted in pivot mounts in the rear superstructure . They were supplied with a total of 3 @,@ 200 rounds , or 200 shells per gun , and could fire at a rate of 15 shells per minute . Their high explosive shells weighed 10 kg ( 22 lb ) , and were loaded with a 3 kg ( 6 @.@ 6 lb ) RPC / 12 propellant charge . These guns had a life expectancy of around 7 @,@ 000 rounds . The guns had a maximum range of 10 @,@ 700 m ( 11 @,@ 700 yd ) . 
