[LUVTOHUNT]

There are many AO members on here with more gun smithing knowledge than I have. I’m interested in making a calibre change to one of my rifles and would like to know if it is doable by a qualified gunsmith. I have an over the counter Winchester Model 70 Extreme Weather Stainless Steel synthetic stock in 300 Win Mag. I’d like to turn it into a 270 Win. Here are my questions:

1) Is this possible to do by changing the barrel and having the headspace
adjusted?
2) Would the bolt or action require any other work done?
3) Do both of these calibres use the same action length?
4) Is this even doable?

If you have the knowledge, please chime in.

Thanks