" So, how robust is the trigger group in these Tikkas, say in wet then freezing temps and salt spray regions..?"

Spent a whole week in Montana last year hunting elk. The day I shot my elk it was -23 when I left the cabin in the morning. Warmend up a little but not much. Shot the elk about 4:30 in the afternoon. Rifle was fine, I was somewhat frozen. Not too much salt water in Montana so cant comment on that.

Lefty C