Sure don't want to shoot up near the sound barrier, that kills accuracy with a diablo pellet. The thing with a PCP is that you can shoot say a .22 caliber pellet at 950fps or so, and I'm talking a heavy .22 pellet like a Kodiak or Eui Jin. For a hunter to be able to hit a critter at a distance with so much force is great, but still partly because of the waisted pellet design it wont carry as far as a .22LR or similar. I personally stick with .177 because I punch paper mostly, but I DO shoot a heavy 10.5 grain pellet most of the time up between 850-950fps depending on the gun...and (almost)zero recoil. I've heard it said that shooting a PCP is very clinical, and I agree, it's like surgery at a distance:)