I have a tikka supervarmint in 7mm Rem with the tikka set trigger. SWEET!I’m assuming you don’t have a trigger pull gauge ? 4 ounces is extremely light and even with trigger spring changes I haven’t gotten one that low.
Did the rifle come from a previous owner or was it new from the store?
Tikka single stage triggers are some of the best on the market like others (I have three different Tikka rifles.) they are adjustable you just have to take the rifle stock off to get to the Allen bolt.
Also tikka does make a 2 stage trigger in a few select models both right and left hand. A buddy has one and he loves it! You could always try to find one on the used market.
I’ve had aftermarket from Timney and triggertech on other rifles but still prefer my tikka triggers as they work for me!
B