True Rocketman but not a fair test. Bit like saying that a John Deere tractor is superior to an Aston Martin DB5 because it can get farther across a ploughed field before becoming bogged down. A Purdey game gun would be made to perform with the intended ammo. I've never had a gun shoot loose given a diet of the correct ammunition. The Proof House had a Boss shotgun that they retired still in good order after having had over a million and half cartridges through it. Poor maintenance is the worst enemy of guns. Lagopus…..