5 inch gun was what 127 MM? The Tiger 2 tank destroyer had a 128MM gun and I bet it perfomed pretty close to a 5 inch gun if not better.
US Naval guns of the WWII time period are generally viewed as being the best of their ilk. The 16"/50 was without peer, deemed superior to the Japanese 18.1" gun fitted to Yamato and Musashi. Likewise, the 12"/50 fitted to the Alaska class Large Cruisers is considered the finest of her type/class ever fitted to a warship. It should be no surprise that smaller caliber American naval guns were equally outstanding.
The US dual-purpose 5"/38 was the finest gun of its type for many years. Where it really excelled was in rate of fire. A good gun crew could get off between 18 and 21 aimed rounds per minute. A dual mount could manage in the range of 30 to 40 round per minute. I doubt very much that the 128mm in a Jagdtiger was able to get more than two rounds off per minute.
This high rate of fire was sustainable too. During the engagement off of Samar, the US Destroyer Escort Samuel B. Roberts fired off 608 5" rounds from her two 5" guns within 35 minutes (and is believed to have scored over 300 hits on various Japanese battleships and heavy cruisers). That's better than 17 rounds per minute.
This was a powerful gun, shooting a round weighing 54 lbs at 2,600 fps. The standard SCS round could penetrate 5" of face-hardened steel armor at 4,000 yards. 5" rounds striking German Panzers during the Sicily invasion (Destroyers had closed to with 1,000 yards of the beaches to provide direct fire support) literally blew the tanks to pieces.
The problem with the game is that we do not have a variety of ammo types for the 5" guns. We are stuck with the common AA round for all purposes.
My regards,
Widewing
