JSB Match Diabolo Exact King MKII Heavy .25 Cal, 33.95 Grains, Domed, 300ct

.25 caliber 33.95 grains Round nose 300 pellets Length 8.74 mm Head size 6.35mm BC .054 MkII pellet has a skirt diameter that is only 6.5mm, making the pellet work a little more reliably in some rotary magazines. Please note: The only difference between the original King Heavy and the King Heavy MkII pellets is the outer diameter of the skirt. This dimension on the original MKI pellets are 6.68 - 6.70 mm while the MKII pellets measure 6.58 - 6.60 mm. The appearance of the skirt or back of the pellet can vary.