I would definitely stick with the 158 grain bullets. You want penetration. I have very limited experience with the .357 on deer since I almost always carry my 29C, but I have used 240 grain XTP's in it on deer and hogs with no issues. The few times I have recovered a bullet it was a perfect mushroom. I think the Hornady or the plated 158's you have would work well inside 50 yards. Pick the one that is most accurate in your 28. Good luck.