I have. The shoot fine. Its been a while, can't remember if they were Fed or Winchester. I have a couple boxes of Sluggers that I want to get to the range with. They make nice round holes. Only trouble I had, I shot so many in a row that the barrel got hot and one got stuck. It cooled down quickly and dropped right out after about 1 or 2 minutes.
It ain't gonna hurt it a bit to shoot slugs.