6"/53 caliber gun 6"/53 caliber gun The 6"/53 caliber gun (spoken "six-inch-fifty-three-caliber") formed the main battery of some United States Navy light cruisers and three US submarines built during the 1920s. United States naval gun terminology indicates the gun fired a projectile 6 inches (15 cm) in diameter, and the barrel was 53 calibers long (barrel length is 6 inch x 53 = 318 inches or 8 meters.) The gun with side swing Welin breech block and Smith-Asbury mechanism weighed about 10 tonnes and used a silk bag containing 44-pounds (20 kg) of smokeless powder to give a 105-pound (47.6 kg) projectile a
Many Happy Returns (Person of Interest) to Nielsen Media Research. This was a 4% increase in viewership from the previous episode, which was watched by 12.73 million viewers with a 2.4/6 in the 18-49 demographics. With these ratings, "Person of Interest" was the third most watched show on CBS for the night beating "The Mentalist", but behind "Rules of Engagement", and "The Big Bang Theory", second on its timeslot and fifth for the night in the 18-49 demographics, behind "Rules of Engagement", "Grey's Anatomy", "American Idol", and "The Big Bang Theory". "Many Happy Returns" received very positive reviews from critics. Keysha Couzens of "TV Overmind" wrote