Post some pics of your reloaded rounds so we can see what you are seeing.
I will say that back in my USPSA competition days, I played with 250 grain flat point round nose and 255 grain semi-wadcutter bullets, both hard cast and sized to 0.452". I found them to be a bit finicky when it came to reliable feeding in my 1911. It is a whole lot less trouble to make 185 to 230 grain bullets work reliably in the 1911.

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VCDL, GOA, NRA