My neighbor has the Gamo Big Cat in 177. I asked how he liked it. He hates it. He said he would have better luck throwing a rock at a squirrel then hitting it with the gun. He said shooting a box at 20 yds looked like a shot gun blast. He's shooting crosman premiers theyre old and don't have the grain on the can. Without a chrono I said we should try getting some different pellets like the RWS 8.2 wadcutters and see how that treats it. Maybe they'll slow it down and in turn pick up some accuracy? Is this the right road to go down? He's not into tearing it apart to mess with it.