H110
May I suggest trying H110 over large magnum pistol primers.
I have shot this bullet since 1970 and have good success.
Boy. did you get a buy, too bad 1,000 were available.
Hodgon's #21 dated 1970 `shows 18.0 gr to 20.0 gr H110
Speer #9 dated 1974 shows 18.0 to 20 grs H110
Speer #8 dated 1970 shows 19.0 t0 21 grs H110
all over lg pistol Magnum primers and 210 gr Speer HP bullet.
The 220 gr Speer SP shows a decrease of 1.0 gr in each case.
I think of Speer #8 as the heavy load in all Calibers and bullet I have tried.
I have not experienced disffcultys in any of their loads but as always start low and work up being careful at all times and stop and reduce if excess pressure is noted. These are quotes from my manuals and andare not to be
considered as anything else.
Good luck and be careful.