A 45 ACP was the second handgun I ever bought and I still have it. It is a Colt Series 70 Gold Cup National Match. I picked up components that had to be fitted and had a gunsmith replace the original parts (which I still have). It is amazingly accurate.
The most accurate .45 auto I ever owned was an Argentine Systema Colt. It was not particularly well finished but it’s accuracy was almost off the charts.
To make it even more odd, it had a heavy trigger. With a trigger job, it probably would have been a one hole shooter. I needed money and sold it to a dealer who believed me and paid a good price for it.
I later met him at another gun show and he too was amazed at how accurate it was.