Home cast H&G #68, 200 gr LSWC's, seated to allow just a hair's width of full dia. bullet shank above the case rim. This allows that hair line of lead showing above the tapered crimp to smooth the entry into the chamber. A loading trick I picked up from Al Dinan, noted match grade 1911 gunsmith from the 50's & 60's.
With 5.1-5.2 gr of Win 231, that bullet will do nicely for 25 & 50 yd Bullseye competition. I size to 0.452", and the alloy is wheel weights to lead in a ratio of 2:1. I also use the old NRA lube formula: 50/50 alox to beeswax.
My 1911's include a Colt Nat'l Match Gold Cup, a WWll Remington-Rand, two Ruger 1911's, a Sig 1911 RCS, a Sig P227 & 220, and my son's DW, and two Colts. All prefer this loading above any other. At ~800 fps from a 5" bbl., it'll also do nicely for CC if you don't mind reloads.
In addition to the above, that same combination also works to perfection in a 7-1/2" bbl'd Colt SAA with my spare .45 ACP cylinder installed. In my S&W M-25 1955 Target N frame, it's the most accurate .45 ACP load I've ever fired averaging 1.5" gps at 25 yds as the rule. The Smith's 6.5" bbl gives me a chrono'd 875+ fps making it a field gun with considerable smack. Fifteen years ago, I put down a young buck whose rear off side leg had been broken by a misguided bow hunter's broadhead. Penetration from the front was through the skull, brain and exited through 5" of neck muscle. Penetration it's got!
HTH's Rod