I have Sako / Tikka Optilock rings and bases o the new style Optilock ringmounts on all my Sako and Tikka T3 rifles. Here in Canada we do not get the "Free Rings" with the T3 rifle.

As for scope 4-12 or 6-18x40 Leupold VX2 get my vote. I use Leupold on all my rifles. I have a 6.5-20x40 LEupold on my 22-250 Sako m75ss rifle and a 4-12x40 on my 243.

Maybe a Bushnell Elite 3200 5.5-15x40 would be another scope to look at.