Board Thread:Tutorials/@comment-91.100.105.77-20130816170400/@comment-216.118.151.154-20130817014708

After reloading, the musket fires when you release the right mouse button. If you keep holding the button until you see it start to zoom in, you can cancel the shot by switching to something else on your hotbar before you release the button (like how you cancel a shot with a bow).