Howa mini-action in grendel to be released in mid-2016

[Drift]

I, when ordering a barrel usually order a heavy sporter fluted barrel. That usually give me an accurate barrel light enough for hunting. What I want to know is 2 things. How thin/light of a barrel can I go with and still keep the first 4 round under an inch at 100 yards-from a cold barrel? And (2) how thin can I get the barrel and still have it aftermarket threaded to put a suppressor on it? . Thanks