If its not extracting try checking to make sure that the shell is going in and coming out of the chamber okay. If it is sticking it just may need to be cleaned or there may be a partical of metal making it stick jewllers ruge works wonders don't use to much. also look at the extractor make sure it is clean oiled and the exractor spring is still strong enough, to grasp the shell. Like he said take your time, it will work.