That is a fallacy that NS extends brass life. Bushing dies allow you to adjust neck tension. For your factory Tikka I would stick with the standard FL die. It is also untrue that NS yields better accuracy. With mid to full power loads, you will eventually have to FLS....but the case will now resist being sized and eventually get too big at the base.
Awesome. I like to stick with the KISS principle, but I also want to do what I can to make my equipment as accurate as I can. Then when I miss the bull, I know it's just me

Thanks for all your help.