It's been decades since I reloaded any .41 mag stuff but, if you get a copy of American Handgunner a couple of issues back, Clint Smith did a good article on Texas whitetail hunting and I think he used nothing but factory ammo. Might give you a starting place for an ammo choice? My son's in the hospital and, I just tonight, gave him my copy of this, or I'd stick it in an envelope and send it to you. Hope this helps.