My 1971 Sierra Manual:
No Red Dot loads listed for .38 Special loads
158 Gr .357 Jacketed Soft Point
Herco
5.8grs = 750fps
6.1grs = 800fps
6.4grs = 850fps
6.6grs = 900fps
6.8grs = 950fps MAX LOAD
My 1973 Hornady Manual:
No Red Dot or Herco Loads listed for the .38 Special, 158gr Jacketed Hollow Point.
Loads listed for 158gr LEAD ROUND NOSE
Red Dot
3.5grs = 750fps
3.8grs = 800fps
4.2grs = 850fps
4.5grs = 900fps
4.9grs = 950fps
5.3grs = 1000fps
5.6grs = 1050fps MAX LOAD