hello pat
and welcome to rootschat

i,ve done a look up on FindMyPast for the pension record of your william and the only record for the 86th of foot is for a
wm mekins born worcester 1897 , he wasn,t a col sgt on this record but a hospital sgt now if this is your rellie there are 13 pages in the record although 2 are blank pages !! i,ve downloaded them just in case , and although there are 11 pages ( having not bothered downloading the blanks ) the actual amount of info is no more than you,d get on a usual record of 4 pages .
hope this makes some sort of sense to you
best wishes
trevor