Don't know anything bout Astra, and I haven't fired a Steyr, but I did look at a used M40 at the range 2 weeks ago. rglbegl is correct about the ergonomics, it really fits the hand well. And the sights are kinda funky, but if you have that kind of price for NIB I'd hafta get it. The used one was $380 here.
If you can't impress them with intelligence, baffle them with BS
American by birth, Southern by the grace of God
Do unto others before they do unto you
"Most importantly, when the time comes to pull the trigger, shoot to kill." ~ Robert H. Boatman
Glock 17, 19, 26
Kel Tec 3AT