Don't use JHP. They lack penetration at hunting ranges. Believe me as I found out the hard way after finding several neck shots with JHP's at under 15 yards stopped at the spine without breaking bone. Ideally you will want to use 158gr or heavier hard cast lead SWC's. My own 158 gr cast lead SWC with gas checks zip through 9" of phone books at 25 yards like it is butter. Brinnel hardness was around 12-13. Normally I like lots of expansion in my rifle loads but revolver rounds don't have the higher energy and thus rely more on tissue/organ damage and hemorrhaging than shocking power. More like an arrow. Because of this shot placement is more critical than with a rifle. Practice mostly at 25 yards and some at fifty because we are not always accurate on our range estimates while afield. I like OKF's paper plate drill. Used to do the same thing when practicing for archery hunting with my recurve bow.
John
Actually my opinion is cast lead will suprise you at lower velocities.Actually just a few years ago,well maybe closer to 10,I read an article,cant remember who wrote it but remember I recognised him as being pretty durn knowledgeable.This writer was still recomending plain lead round nose in .38 special for defense cuz lead worked better at .38 velocities.