Another vote for the Theoben Rapid (a few pictures below). Superb hunting rifle and I bought mine from Ben Taylor for his legendary "tweaks" to improve performance, including new regulator and numerous other adjustments. I shoot @ 30ft/lbs and @ 34ft/lbs, the latter with Bisley Magnums. (Yes I know I had the bipod round the wrong way in that third pic, hehe).
The Rapid is pure brute force, highly accurate and totally dependable. Get on, you won't regret it.
Below is a graph showing trajectory of the 30ft/lb pellet (AA Field) compared with the 34/ft/lb Bisley Magnum.