BenKenobi said:
I said that the roots of the Garand also lie with the Austrian rifle, which they simply do. It is you who sounds like a guy who made it big in the Big Apple, who wears a cashmere coat and is driven around in a sixteen cylinder Cadillac, while being kind of ashamed that his grandfather lives half-across the globe in a small village near the Danube in nowhere near as fancy mansion
*snip*
No, you claimed grandparentage. You didn't say "Hey, look how far that Mannlicher feed system got - it made it into the M1." Because I agree completely with that.
If I'm the guy in the Cadillac, you the guy back in Hungary who's too stubborn to admit that he wishes he'd left for NY instead of staying behind to cultivate the fine culinary qualities of turnips - so he never fails to mention, to everyone, that it was his idea, not mine, to go to NY.
The answer to the rest of your post is in your own post (and mine, for that matter). Operating system, not feed system.
The BREN isn't a rifle, it's a machine gun. Of your other examples, only the late M2 Carbine MIGHT apply - but was developed in '44, after the Stg-44. Of the rest, 20 rounds or less is max. The G43 in Kurz doesn't count, because it uses STG-44 mags, so it's clearly developed after the StG was.
Which leaves me with my original statement; the StG set a new standard for the standard infantry weapon - a standard that nigh-all rifles have upheld since. At the time, it was first mover. It was unique. It was distinctive as hell. Even if it was just extending a mag, much like how an en bloc was just leaving the stripper clip in the rifle.
So,
A) The StG is the grandfather of all 30-rounder-magazine-using personal rifles, and the Mannlicher is the grandfather of every weapon that happened to use an en bloc feed system, or;
B) The Mannlicher is not the grandfather of every rifle with an en bloc feeding system, because the StG is not the grandfather of all weapons using 30 rounder mags, ever, even if "there were
tons and tons of literally no major service infantry rifles with 30 rounder magazines using detachable box magazines when the StG started doing it, wherease there were
not that many at the time of the Garand development at least four service rifles (according to wiki) using enblocs."
Pick one.
As for the StG vs AK, the StG uses a long-stroke gas piston and a tilting bolt. The AK is a long-stroke gas piston rotating bolt. In this regard, the AK is more similar to the Garand.