Accuracy is king and each gun is an individual. There is one way to find what is best in your particular gun.
Take several bullets in each grain weight you like and try them with several sabots
start with 90 gr and go up the the max your gun will handle pick out the best target then try 5 gr each side of that make sure you mark the load bullet and sabot on each target. You may already know this but the sabots come in different lengths and thickness of petal, finding the right one for you bullet is important it needs to be tight enough so the bullet can not slip when the rifling spins it yet loose enough so you can load it with out pounding on it. Lee