It happened again. After having a failure to feed problem,round not going in the chamber all the way, I sent my Springfield Mil. Spec. back to Springfield. They replaced and tuned the extractor. Went shooting last Monday. I shot 100 rounds Federal 230 gr. ball no problems. 50 rounds S&B 230 gr. ball no problems. 100 rounds Speer Lawman 230 gr. ball and had 12 or so failure to feed problems. Its the same type of problem, with the slide locked back/open I put a full mag in, release the slide and the round doesnt get pushed in all the way. Total rounds to date 1050, all 230 gr. ball from the above listed manufactures. So I guess Ill be sending my gun back to Springfield.