Originally Posted by JonM
yes you can use them. as stated above by 25-5 dont use anything over 230grain for 45acp
That's a good rule of thumb. I've experimented with 255 SWC in a 1917 .45 ACP revolver, but it gained nothing useful.
IME, the 200 Gr SWC is a very good all around target and plinking bullet for both ACP and Colt.
And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.