My oldest book speer # 8 (1970) shows 700x for 380, 9mm,38..... but no Hi Skor in da book....
The following data is said to be from speer # 7, Go to
http://forums.handloads.com/forum_posts.asp?TID=6211
Does the powder still smell good? If not toss it in the garden.....
Hi Skor came in a Black and white can with DuPont in red letters.
The starting load was 2.3 gr Hi-Skor. up to 2.8 gr, 148 gr .358" Speer HBWC, 833 fps, Rem .38 Special brass, CCI 500
The only other loads for it in Speer #7 are .45 ACP, 3.5 gr - 4.5 gr, 200 gr LSWC, CCI 300, 639 fps - 881 fps in GI brass and .45 AR, 3.0 gr - 4.0 gr, 200 gr LSWC, CCI 300, 688 fps - 815 fps, Win solid head Auto Rim cases.
I have never loaded DuPont Hi Skor, and can't confirm these loads....... THIS IS THE INTERNET
USE CAUTION AND WORK UP YOUR LOADS