231 is very popular in the 45 acp. You will get a lot of responses here.
Sierra #5 list 1.270 inches with 5.7gr as Max.
Hornady #7 lists 1.230 inches with 5.7gr as Max
Speer #13 lists 1.260 inches with 6.2gr as Max
Hodgdon lists 1.2 (Flat Point) inches with 5.3gr as Max
You are up there, but no way your are "Way to Hot" as the Range people have said.