I use it for 9mm and .45 ACP revolver loads where I want highest velocity. It works very well with medium weight and heaviest bullets. I have found that it works well with cast bullets too, specifically the 255 gr. bullets in .45 ACP. In the 625s that haven't had the chambers chewed away with excessive chamfering you can get very close to .45 Super ballistics without the need for Super brass.

Dave Sinko