i use a model 36 also. i was advised by our sheriff's department to use winchester silvertips, the 110 gr load. this is what their detectives use i suppose. Now, the problem with the lighter loads is they will not generally shoot to point of aim, but are usually low, sometimes very low. you must check that carefully, although of course it is not really much of an issue at less than 7 yds. many people like wadcutters, but i havent had much luck with them. recoil with the silvertips is minimal, functioning is perfect, and in my gun they shoot okay so long as you are fairly close.
just my two cents.