no, the spring was on the right way round, i got some help from a tek guy who used to have a mini.
just played with it last night and there was a massive pop followed by an air leak, i'm pritty sure the bolts gone, and theres some wear on the inside of the chamber.
feeling pritty depressed about it cos i love the mini, but i got some neat advice which is just to save up alot of money to get one super new marker which is what im going to do now unfortunatly.
mini is excellent but unless if i can get a truly cheap replacement bolt and spring i'v given up on it and saving for sumit else