The mod 36 is a STEEL J-frame not like the mod 37 that is a
feather light and not 100% steel frame. Yours can shoot a few +P ammo to see where it shoots but a steady diet is not advised,since damage may result.
The factory loads of today are nothing like the loads used 50 years ago and even the CUP and PSI standards have been changed for the publics safty................
I have no idea what the REAL pressures of todays loads,really are...........I have yet to see them printed on the ammo boxs.
My steel frame snub nose mod 49 is said to be good for 10,000 rounds and 50% of those can be the 158gr lead at 900fps. I do not know what your steel j frame is rated for..........
good shooting.