This is a Gamo Pellets known as the High Weight, Quiet Pellet chambered in 177PEL, model 632272254.
GAMO's mission is to continually advance in air gun technology and to integrate new features to enhance your shooting experience. You can expect quality and performance from GAMO air rifles" air pistols" airgun pellets and any GAMO accessory.
Features:
Maximum noise reduction
Increased flight stability and impact energy
Copper layer and long skirt