sentences:  The Mexican marked pistols undoubtedly saw service during the Mexican revolution along with other privately acquired Military, Sporting Model, and 1903 Pocket Hammer Colts.The U.S. Army's unsatisfactory experiences several years earlier with .38-caliber pistols used against Moro tribesmen during the Philippine–American War may also have been a factor against larger acceptance of the "large frame" automatics.Events of this conflict called into question the effectiveness of earlier pistols in the 1902's class, ultimately leading to the 1904 Thompson-LaGarde Tests which concluded that for military use, ".38"-caliber cartridges of the time were inadequate and recommended the adoption of a pistol cartridge of at least .45 (11.43 mm) caliber.