Talk:Mastery Rank/@comment-212.85.167.106-20180222164955/@comment-85.76.45.164-20180224113136

You can get mastery from the same weapon only once so if you want to get your mastery to max, you need to level all weapons/frames/etc. to level 30. You don't get mastery by leveling the same weapon to level 15 another time. I highly recommend levelling a weapon to max rank before selling it.