New to milling

[Offgridguy]

Hi guys new guy here from Tennessee I'm just getting into milling and bought me a holzfforma g444 which is the clone to the ms440 my question is what is the biggest bar I can run on here and can anyone recommend a good place to get said bar and milling chains from

 

[kenmbz]

I use Granberg for my milling chains and use one of their Alaskan mills too.
Not the cheapest but been very happy with both.