Had a good old plinking session with the HW30s yesterday afternoon, wanted to see what it could do with the 4.50mm/7.5 grain Sniper Lights that I bought recently. Set up a lump of vinyl covered chipboard against a tree and got myself into a comfortable shooting position, 20 yards away. Put a pellet into the board and went for a group - not easy, as the centre of the duplex - 2.5x scope - completely obscured the hole, but managed to put four shots into a cluster less than 1/4" c-t-c. Spoilt it with the fifth, but redeemed myself with the sixth by taking out a fly that was stupid enough to land on the target.
Probably not up to Bobby's standards of accuracy, but I was well pleased with the result...