sizing question?

[cf5757]

So I slugged my .45 ACP Micrometer shows .452 , this means I want to size to .453? Is .001 over slugged size standard?

[truckboss]

If you size to .453 and it will chamber and feed properly then go for it.My Kimber will only run for about 100 rounds at that size until the chamber gets a little dirty.When I size to .452 it'll run forever.Mine slugs out at .4515.