Aaah this is my area of expertise
Yes the Steyr-mannlicher M95 was used. This is an austrian-hungarian weapon btw. This rifle was used by many nations actually, not just Austria-hungary.When WW2 started Hungary used the M95 along with the Updated Huzagol 31M (basicly an M95/30 with sight protectors). Romania used large numbers of M95's aswel as Greece along with the mannlicher-schoenaur(not a straight pull). Bulgaria also was a large user of this rifle.
The M95 was supplanted by the Huzagol 35M tough. Its basicly a turn-bolt M95 for the hungarians.
We can see this rifle for the volksturm however. Nazi germany captured 3 million M95's by 1941 and produced Billions rounds of ammo.these rifles were given to allies but alot of M95's were used in the last days of WW2 by the volksturm
I have 3 steyrs. One M95/30 long infantry rifle, One M95/30 stutzen and one Huzagol 31M.
The Schmidt rubin and K31 were solely used by switzerland. As beautifull as these rifles are(I have a K31) they were fired only a handfull of times as warning shots between swiss-german borders. IMO the K31 is the best bolt action service rifle ever made. More accurate then a mauser, Faster bolt manipulation then an enfield, great sights, compact(for the K31 tough..) and very reliable. Also surprisingly easy to disassemble. Some people claim that the rifles are to complex to manufacture and repair, but that was the intention of switzerland.
The Ross rifle was not used in WW2 IIRC