Just looking for some advice- I’m helping a friend out by buying a AYA 25 from him. He bought it at auction a few weeks ago, is yet to collect yet but has some issues and can’t afford it. He paid £440 for it. I understand it is mid 1970’s and in very good condition. However I’ve just found out that it has about true cylinder borings- I haven’t come across this before and am concerned. I was intending to use the gun on clays, pigeons and the odd driven day. Is it possible to get the gun choked or will it be ok for the aforementioned activities?