Spike Features Like most airgunners you ve got some favorite pellets for target shooting and precision hunting. Sometimes you just want to do some casual plinking and that s what the H&N Excite line is for. You ll get good accuracy without spending a fortune. Spike Specifications Excellent for Hunting and Target Shooting / Ideal for CO2 Pistols/Revolvers Content: 400 air gun pellets Pellet Caliber/Weight . 177 / 8. 64 Grains For air pistols / rifles with a minimum muzzle energy of 5. 5 ft. lbs Screw-on lid prevents accidental pellet spills