There are plenty of big bream in the Worcester to Gloucester area of the Severn (double figure ones if you are lucky) but suprisingly few are caught. In my match days days when fishing what then was the Worc Fed water below Diglis weir I saw plenty of 5/6lb bream weighed in but that is one of the bigger ones ****ie, well done mate.
Could the reason not many are caught be because few anglers target river bream and the majority that are caught are on barbel and chub tackle, hardly surprising really when you consider the normal baits that chub and barbel anglers use. I fluked a 7lb bream at Kempsey, below Worcester, a couple of years ago and that fell to a 14mm halibut pellet meant for barbel as did a 2.5lb roach at the same place.
A concentrated heavy feeding pattern on some of those stretches could possibly yield some very big bream to those who are prepared to put the effort in, it could be you ****ie boy, you know the water well enough. " ****ie the Severn bream king" it has a ring to it wouldn't you say?