28 cm SK C/28 naval gun
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The German 28 cm C/28 was a 283 mm 52-caliber built-up gun designed in 1928 and used on the Deutschland class cruisers.
Adolf Hitler and other senior German staff below the aft guns of Deutschland in April 1934
Caliber
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In guns, particularly firearms, but not artillery, where a different definition may apply, caliber is the specified nominal internal diameter of the gun barrel bore – regardless of how or where the bo
7.92 mm caliber rifle barrel (Mauser m/96)
Rifle cartridges: from left: 50 BMG • 300 Win Mag • 308 Winchester • 7.62 × 39 mm • 5.56 × 45 mm NATO • 22 LR
A 45 ACP hollowpoint (Federal HST) with two 22 LR cartridges for comparison