I have had my 597 for almost 10 years now and always run the cheapest bulk ammo through it with almost no issues with the factory 10 round mag. The aftermarket 30 rounders are a different story. My best friend bought his 597 just before I did and has had an equally good experience.
Savage 6 / Stevens 87. Any of the letter variants, like 6A, 87D, etc.
All metal actions, long and heavy barrels, really cool action operation, loads of vintage character, lots of "what is that" comments at the range.
Stg-44 is awesome, the only thing that would make it absolutely perfect would be metal mags. I would pay extra money for those!