I interviewed Squadron Leader Bill Williams (who led IX squadron that day, as the CO's aircraft went u/s) for a magazine article in 1994. He told me that as he commenced his bomb run he clearly saw the first four bombs falling from 617's Lancs, and that the fourth was a direct hit amidships, which instantly caused all the ship's AA guns to stop firing. I clearly remember he grinned as he told me this, as up until that moment the Tirpitz had been putting up, as he put it "a very heavy flak barrage.".
He was awarded an immediate DFC, and was interviewed on BBC radio by Ed Morrow. He gave me the impression that - as far as he was concerned -they'd ALL sunk it.