Feed your .30 caliber PCP air rifle some Brimstone! Umarex Brimstone .30 caliber pellets come in at 50.77 grains on the scale and feature a traditional dome style design. This combination shoots like heaven and hits like hell! These .30 caliber pellets come in a 100 count tin and are made to an exacting .300″ head diameter. They come in a tin with a screw-type lid that prevents them from spilling.