RE: 500 vs. 870
as far as shotguns go, i'm a Mossberg man. i have beat my Mossberg 835 to death and it still shoots and functions as good as the day i bought it. when i use to dog hunt, my Mossberg was run over by a truck, i've used it as a club (to kill snakes), it's been dropped in the sand and mud more times than i can count and still operated flawlessly with a little WD-40. Mossberg has made a life customer out of me.