Before you do anything get a good magazine( Wilson, Shooting Star, Pachmyer) , and try the same ammo. In a semiauto, if you have problems start with the magazine , the usual culprit and the least expensive, then when you are satisfied the mag is not the problem try something else. Also if it is a Chinese clone ,even though the guns are pretty good for the price ( I have 2), the magazines are not the best. Most of the dealers at the top of the page ,have .45 mags for 1911's. Also this " troubleshooting " section is more for trouble shooting computer problems , you may get more people giving ideas if you post a problem like this in the Gunsmithing section or in the Pistol section. Hope the suggestions help.