Thread: Question for the smiths

I was thinking again about another rifle today and the pros and cons of a custom build. One of the appealing aspects of a custom build is the knowledge that the headspace and throat etc can be set to suit the projectile you would prefer to use. Each time I have looked at a new rifle I have ended up buying a factory one rather than building and I am thinking, what is involved in getting a factory rifle set up to suit a specified projectile/OAL? Thing of the likes of the tikka 7mm mags, how hard would it be for a smith to set one up so the 162gr amaxes could be in the lands at magazine length?
My current one shoots best with 120 thou Jump with 168gr bergers meaning they fit the mag easily but was toying with the idea of another....