Sizes for 45 ACP

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kansas45
July 29, 2006, 08:09 PM
I'm starting to reload for the 45 ACP. My question is why are there .451,
.4515, & .452 bullets for this size? I'm sure there is a reason but I don't know what it is.Dothe differen't sizes perform differently? Just wondered.:confused:
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PaulTX
July 29, 2006, 08:23 PM
Generally the .451 is for 45 ACP and .452 for .45 Colt.

Paul
Car Knocker
July 29, 2006, 08:29 PM
.451 is generally jacketed bullets, .452 for lead.
mete
July 29, 2006, 09:38 PM
Car Knocker is right. If you use an expander designed for the .452 it might not grip the .451 tight enough. That will cause problems .They do make different size expanders.
Clark
July 31, 2006, 10:29 AM
The 4 sizes of 45 caliber bullets:

The SAAMI drawings show 45acp, .45acp match, 45 auto rim, and 45 Win Mag bullets from .449" to .452".
The SAAMI drawings show 45 Colt bullets from .450" to .456".
The SAAMI drawings show 45-70 bullets from .455" to .458".
The SAAMI drawings show 458 Win Mag bullets from .456" to .459".
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