I haver a SW model 36 with 3" heavy barrel. Manufactured in 1970.It has been carried a lot and shot sparingly probably under 1000 rounds. All factory loads. Since there are no factory loads available I have brass, bullets, primers and powder to reload it. The bullets are 158 gr. lead SWC with a BHn of 18. I have no data for that bullet. In searching the net I keep coming up data of 5.0 gr. of Unique as the old FBI, Treasury load. Question is that a +P load? Since the model 36 of that year manufacture isn't rated for +P how much would I need to back it off to be safe and useable? Thanks in advance!
