It's true that Notts is a semi-target for IB and that Exeter and Cass are somewhere between good non-target and semi-targets for IB, however this is for undergrad.
At the postgrad level then all of these are non-targets for IB. The possibility of getting into IB with a master's from somewhere other than LBS, LSE, Imperial, Oxbridge and maybe Warwick isn't very high. Even here, often Cambridge and Warwick's MSc finance courses are considered as semi-targets. Postgrad recruitment is very small in the UK for banks so the distribution of unis is very concentrated on the top ones.