hi Steve
its hardly expert knowledge,i have spoke to several people who fettle,Andyfr1968,Wurz, with there help and actually seeing it done by John a trained gunsmith.it gave me the confidence to take on this task! so it just goes to show if you do your home work,you can achieve most fettle's
next challenge is a lathe,i have one lined up and for a good price
i just have to convince her indoors that it is definitely needed,as well as the arc welder