I'm no expert, but I suspect it's a normal power level for HW30's in general. I bought a .22 HW30 about a year ago. Stock it put out about 7.5 foot pounds with most lead pellets. However, with the H&N alloy 9.56 FTT green, it got about 8.3 foot pounds (624 fps) at the muzzle. With a Vortek spring kit, that jumped to 9.5 foot pounds (672 fps). Amazing! But the FTT greens are quite expensive, so I only bring them out occasionally.