I would go with 158gr, no reason other than thats what I have used with good results. I have taken three does with 158gr XTP's, two of them fell within 20 yards of being shot. My longest shot was about 50 yards, two were straight on heart shots and one was a neck shot just below the skull at about 30 yards and she dropped were she stood.

"The reason a dog has so many friends,He wags his tail instead of his tongue."

"I don't always listen to Black Sabbath,But when I do so do the neighbors"