If the newer bullets won't give the accuracy you need, go back to the "Old" technology.Speer, Hornady, Sierra...130-& 150gr.
If you just have to have 140gr., wellll...O.K.
1 1/2" or less@ 100 yds. is sufficient for any critter within ~ 400 yards, and
very few of us...them...whoever...should take that shot!
Practice will get you more improved accuracy than almost any exercise in Ballistic Proctology!