Black '47 (2018)

A few reviews have described this as an Irish western, which is pretty fair. A chap comes home to Ireland after serving abroad in the British army and finds that the same British rulers, and those that sympathise, have left his homeland, well, fucked.
And the potato famine has turned a bad situation into a nationally devastating one.

He soon falls foul of the law and decides to stop bollocking about and kill an arseload of baddies.

Somewhat over-simplifying it, but not a million miles off. There is also lots of mature stuff about loyalty, the ambiguity of lines between good and bad, the class system, horrors of repression and other such stuff.

The two leads, Hugo Weaving and James Frechevelle are cocking superb.

Yup, very good.