I finally got my new handi in 500 S&W. I took it to the range and it would not group under 5" @ 50 yds. I carried it to my gunsmith who checked the crown. The crown was not square so he put an 11 degree reverse taper crown on it. I went back to the range yesterday and it now groups an inch at 100 yds. If your having similar problems check the crown. :grin: