I have a plains game trip coming up in June and I've been trying to get proficient with my Chapuis 9.3x74r with a Leupold 1-6x scope. The rifle is reasonably accurate. 4 shot groups at 2 inches at 100 yards from the bench but off of the sticks I'm struggling a bit. The triggers on this rifle are clean and crisp but pretty close to 4.5 lbs. My bolt guns are set up for 2.5-3 lbs and I'm finding it hard to be consistently accurate off of the sticks.

Can and should the triggers be adjusted down to 3-3.5 lbs? I kind of remember reading about a single set trigger as the front trigger, is this common? Is it possible as a modification once the rifle has left the factory?