Well the 145 Speer BTSP worked perfectly on a big north Texas doe. Hit a couple inches behind the shoulder mid chest the entrance hole being just a bit bigger than bore diameter centering a rib and exiting with a nice big 2 inch hole. I saw blood coming out the far side in a mist when I shot. Normal 30 yard dash with a blood trail anyone could follow in the dark. I'd say she weighed around 110 pounds before I shot her. Perfect freezer deer.