Just for a reference my Accura 45 is a tad larger than my Elite 45. My Accura is about .4525 and the Elite is right at .451 if you want to shoot sabotless.

Im not sure about earlier CVA 45 barrel specs so......

I like the 45/70 300gr semi rounded nose flat point design for making conicals and just liquid Alox on them for resizing. Im getting some pure lead 405gr RNFP to try next since mine loved a PR Ultimate 360gr spitzer type tipped conical.

I size them then knurle. Knuling a .458 will likely remove most of the lube grooves. After Knurling i use a larger die to make the knurling uniform.