45 ACP Bullet Diameter

[Srchief77]

I have been looking at various web sites and at some local suppliers of shooting equipment to buy bullets, specifically .45 ACP. Having just started out reloading I am not clear on what the difference is between a .452 and a .451 diameter bullet for the .45 ACP, and yes I know .001. I am currently using .451 diameter bullets.
I am assuming either one is acceptable. Can someone shine some light on why one would be better to use, assuming that there is a difference.

 

[ArchAngelCD]

Jacketed bullet for use in the .45 Auto are usually .451" and lead bullets are usually .452" for most guns.

Welcome to the forum Srchief77...

 

[MarcusT]

.452 jacketed are for ther 45 colt..