For punching paper the .40 is very good, and shoots a pretty flat trajectory with the correct load. I tried it at a silhouette match, and shot a perfect score at 25yds, then at 50 yards fell to 50%, at 80yds the scoring died! That .395 ball just doesn't pack enough punch on heavy steel. I have tried it on steel target courses, and sometimes you may nick the steel on targets further out, but you cannot tell if it's a hit.
I am currently building a .50 44" HH barreled long rifle for steel work
I am currently building a .50 44" HH barreled long rifle for steel work