Talk:Mastery Rank/@comment-24.250.69.50-20141018063537/@comment-189.90.98.24-20141019195115

It is pretty clear already. Each time you rank a weapon, be it yours or from your sentinels, you gain 100 mastery points, making it 3000 mastery points per weapon on rank 30. That amount is doubled for warframes and companions (sentinels and kubrows), making it 6000 per to rank 30. Note that you don't get points by reranking the same weapon, be it after selling before completely ranking it to 30, or by polarizing it with a Forma and ranking it up. In the former, you will continue gaining mastery points from the point were you left it before (say you sold your Lato when it was rank 2, bought another one and ranked it again. ranks 1 and 2 wont give you mastery points, but the rest will).

You also get a meager amount of mastery from clearing each sector in the star chart once (246 sectors, 14746 mastery points awarded in total), as stated on the 'Gaining Mastery' table.

Gaining mastery is no rocket science, it is just ol' and dirty grind.