![]() It is surprising that both government and private manufacturers took so long to realize that by increasing powder and lessening bullet weight, it could produce rifles with much greater range. The round deemed so effective, Colt began making Gatling guns to utilize the same round later that year. The winner would be barrel #16 with the #58 ammunition, which would be the 45-70-405 cartridge. Each variation had its own barrel and fired 20 test shots at six targets from a distance of 500 yards. 45 caliber bullets, powder amounts from 65 to 80 grains, several rifling variations and bullet weights from 350 to 450 grains. It was a separate, yet related, study to determine which combination of caliber, powder charge and bullet weight would provide the best performance. Springfield Armory Model 1875 Officer’s Model Trapdoor Rifle, Late Type IIĪt this point, the Terry Board held a “sidebar” study. They rejected all but 21 almost immediately, and only two of those were modifications of the current. They again received both foreign and domestic submissions from some of the most prominent firearms manufacturers of the day such as: Winchester, Remington, Springfield, Sharps, Spencer, Whitney and others. Terry, requested roughly 100 different breech-loading rifles from various makers to put through trials. The Board, now known as the “Terry Board,” headed by Brigadier General A.H. #1873 springfield trapdoor carbine for sale trialThis trial was designed to find a rifle more in line with their preference toward range and power than the Model 1870 being “test driven” by soldiers in the field. Then, on September 3, 1872, the Board of Army Officers held another trial. This went on for about five years from National Armory’s Model 1865 to its Model 1870. As reports came in from the field in subsequent years, the rifle would be adapted, redesigned and replaced in the field in small numbers. Armory at Springfield, later just “Springfield”) design, now referred to as the “First Allin.” However, this “adoption” was more of a test drive than a final acceptance. ![]() The Board adopted the National Armory’s (a.k.a.
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