I used the treasury load +P+ 110 jhp. When this load was out, it was the round to use. You have to remember that bullet performance and design was just being born. This was as good as it got for 38 power. The bullet design is of old technology. I still have three or four boxes of the stuff new. I used it in my S&W 66 and model 60 back in the early eighties. We also used 158 SWC HP's for a time. By the way my non +P S&W model 60 never blew up from it. By the way it chronied from my 2 inch at 1050.