Brendan two points.
1). There this wonderful invention called youtube you should check it out, try typing in "Rapid fire lever-action shotgun" I think you find a number of examples of people firing off 8 shots in as many seconds.

2). You do understand why the guns laws were brought in don't you? If you're nut case and want to fire at a crowd of tourist then a rapid action shot gun could be your weapon of choice.

PS I handed in my pump action shot gun during the buy back and haven't missed it.

Aren't lever-action rifles still legal? Why not a lever action shotgun?

The really stupid thing about this, is while the the country is going down the gurgler - increasing debt, loss of freedom of speech, crap power supplies on SA, the morons are arguing about a bloody gun!

Oh just in case people don't want to go look try these links.
here is a Australian based company making the magazine extention so you don't have to be a skilled machine to get a hold of one.

http://www.iceng.com.au/2016/04/27/adler-a110-magazine-extensions/

here is a you tube video on how to fit an extension

https://www.youtube.com/watch?v=qRFM3_OynOg

and and couple of reviews

https://www.youtube.com/watch?v=ZETC39Kf7AE
https://www.youtube.com/watch?v=OdeP-0bCOr8

and a rapid fire fire but slow reloading demo

https://www.youtube.com/watch?v=WAHEi3a08wE

but a rapid reloader can fix that.
http://www.outdoorhub.com/news/2015/02/04/video-speed-load-shotgun-like-jerry-miculek/

ttbn,
You may not be aware of this, but a rifle fires one projectile at a time and it goes in a very straight line until it eventually loses speed and drops or it hits something. That's the way it's designed. It's actually quite difficult to hit the thing you want to hit if you're using a rifle. If you're using a lever action rifle and you have to deal with the recoil and then recock it becomes harder still. Most people aren't like Rooster Cogburn (you know, John Wayne's character in True Grit, what a guy he was). Not much like David Leyonhjelm though, he was a lot less one-eyed...

A shotgun, on the other hand, is designed to fire many projectiles at once, in such a manner that they spread out and hit anything within the cone formed by the path of the projectiles, starting at the muzzle. It's really quite easy to hit the thing you want to hit with a shotgun, even if you're not very skilled. A lever action shotgun doesn't present many more difficulties, although firing half a dozen 12 gauge shots, even birdshot, in quick succession is likely to lead to a sore shoulder.

Can you see that giving someone who might want to hurt other people the ability to shoot lots of shots with a shotgun might be a bad idea?

ttbn, I apologise for that last post, it was unnecessarily snarky. The point remains though.

As I can fire 6 shots from my Brno double barrel shotgun (Category A) faster than 5 shots can be fired from an Adler and 8 shots faster than can be fired from the Adler with the 8 shot capacity, then I really wonder what all the fuss is about.

Lever action shotguns have been legal since the 1996 gun laws were introduced and the Adler is no faster than those that were available at that time.
I suspect that they would have been banned in 1996 if they were a problem, or were the framers of the laws ignorant of the existence of lever action shotguns?
Surely not, for the laws were framed by experts, which is probably why a matchlock musket (shotgun). circa 1650, loaded via the muzzle and being able to be fired at the staggering rate of a shot every FOUR minutes is in Category B and double barrel shotguns, that can fire four well aimed shots in under ONE minute are in Cat. A.

Makes sense!!