Size of factory .45 ACP bullet

[Kawfeegod]

Does anyone have the size of an average factory bullet. I'm not talking the bullets to reload with, an actual loaded bullet ( diameter) I measured one I have and it came up .448. I Slugged the barrel (thanks for the help) in my Llama and found it to be .451. My cast rounds are sized to .452 so that should be ok. I am thinking that if the factory ammo is really that small, it could account for my serious lack of accuracy with that pistol, not too mention that it is a llama :)

[NSP64]

I have never measured loaded factory rounds, where did you measure? directly above the case? They may have a factory taper crimp(accounting for smaller measurement) What brand was it?

[cb4017]

Factory jacketed bullet size for .45 ACP should be .451.

[kir_kenix]

Pretty much any jacketed bullet found in comercial ammo should be .451 +/- .001.

.448 would be horendously undersized for a jacketed projectile. Did you pull the bullet and measure at the widest part, or just measure what was sticking out of a loaded case? What was the brand of ammo that you measured?