Yes. The key is basically to spray a blanket of shells up and down and left and right of any path the attacking plane takes so it will fly into the shells.
And depending its distance and AOA (angle of attack) you need to adjust. Also keep in mind that the offset of the gunsight has some influence if the gun is not perfectly lined up.
Start practicing by shooting randomly at seagulls. Not that you can kill them in the game but they move faster and more erratic than any airplane and give you a much more difficult target to train with.
It will help you to lay a good spread/spray of shells.
A small example of two minutes ago.. This used to be an Anson.
Combined with this song........... GANGSTA !
Good luck !
Ashikaga.
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