The 44 Remington Magnum cartridge is loaded with a 0.429-caliber bullet, and a 44 Remington Magnum revolver has a bore diameter of 0.417-inch. Neither has a damn thing to do with 0.44 caliber.

New York, Aug. 28, 2020 (GLOBE NEWSWIRE) -- Reportlinker.com announces the release of the report "Global Small Caliber Ammunition Market:Focus on Caliber, Gun Type, Ammunition Type and End User ...

Army researchers are reportedly looking at six different types of ammunition of "intermediate calibers," according to Army Times. Those calibers fall between the current 7.62 mm and 5.56 mm rounds ...