Strictly speaking about accuracy, that group is outstanding from a bag. If you had a solid front rest and rear bag set up, that one flyer might not be there. I'd say you were done, just looking at the accuracy.

At 43.8 grs, you're right in the center of the load range. You're velocity is probably right around 2600 fps. A 168 gr bullet at 2600 fps equals a dead deer, no problem. However, if your shooting distance is say 300 yards or over, your bullet drop will be more pronounced. I have no idea what your hunting situation is like, or where you'll be hunting. If you stay with that load, shoot that at 100, 200, and 300 yards, and write down what your actual drop is with that load. Then you can decide what range to zero your scope at, and compensate for hold over out to your range limit.

That is good shooting right there. I'd save that target.