Look on the Hodgdon site. You can run International with 3/4 ounce load at 1150 FPS. I have not personally loaded that light but I would think it should fit and crimp well. It calls for a WAA20 wad. That's the tallest wad for 20GA. If it doesn't work then you will need to lighten up some 7/8 ounce loads using Universal.