I know you said you wanted year-round tires... But no good snow tire sould be driven in the summer.
HERE IS THE BEST TRUCK SNOW TIRES YOU CAN GET...
Cooper Discoverer M+S.
You can get them in 215-70-16's. I've used several sets of them over the years. They are fantastic in snow, ice, slush, rain.
They have the very soft compound rubber, a gazillion stripes, excellent tread pattern, and the soft rubber compound goes all the way to the cords... The tires lose little performance as they wear, unlike, say Blizzaks, which only have a little bit of the tire surface with good compound and then it goes to the harder.
And, they are good truck tires, too. Very strong, durable, tough.