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5/2/2009 3:01:44 PM EDT
I bought some .45 ACP cast 200gr SWC's last week at the gun show and I just noticed that .451 has been crossed out and .452 written in.

Whats up with that? Does it matter?
5/2/2009 3:21:15 PM EDT
[#1]
Lead bullets for .45ACP are 0.452" in diameter, while jacketed bullets are 0.451" in diameter.  You want those bullets to be 0.452".
5/2/2009 4:04:36 PM EDT
[#2]
Quoted:
Lead bullets for .45ACP are 0.452" in diameter, while jacketed bullets are 0.451" in diameter.  You want those bullets to be 0.452".


This.
5/2/2009 4:32:53 PM EDT
[#3]
Don't worry, you are GTG.
5/2/2009 6:16:59 PM EDT
[#4]



Quoted:


Don't worry, you are GTG.


Assuming they actually measure .452

Might be good to verify.



 
5/3/2009 7:19:28 AM EDT
[#5]
I looked at a box that I bought a year ago and its marked (printed) .451.

I squibbed one a while back and according to the considerable effort it took to knock it out, I'm thinking + -.001 wont mean much one way or another.
5/3/2009 7:36:11 AM EDT
[#6]
They will shoot fine, but as you run them a little hotter, leading has the potential to be greater. I use 357 lead bullets in my wheelgun to no ill effect, when I should be using 358. I'm sure 45 would be even less trouble.
5/3/2009 8:17:50 AM EDT
[#7]
Depending on the gun, they might not chamber.
5/3/2009 8:20:34 AM EDT
[#8]
.451 = jacketed ammo
.452 = lead ammo
.454 = different barrel (.45 colt and .454 casull iirc)
.458 = rifle barrel
5/3/2009 9:30:17 AM EDT
[#9]
.45 colt and .454 use .452" bullets according to my current Hodgdon manual.




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