What pellets? I have 4 different ones sitting in my magazine. If it is 777 pellets then they are equal to 100grs of Pyrodex not 100grs of 777. Not real smart but thats the way they did it the mag 777 pellets are not equal to 100grs either. if you are switching to loose 777 from 777 regular pellets try 85 and 90 grs . Lee