Several pension schemes cap at either 5% or even 2.5% - however these are mitigated by carrying forward the cap. So if you get say 4.6% in one year, the carry forward will allow up to 5.4% the next...
Need to look at the regulations (Trust Deed and Rules for company pensions) to see exactly what applies:
1. Is there a cap at all?
2. If so, is there a carry forward used?
(Not a pensions expert, so please excuse the terminology!)