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Jake15 05-14-2012 04:52 PM

loading 45 long colt with 45 acp dies
I already have 45 acp dies and I want to start reloading for my buddies S&W 25 in 45 long colt. Is it possibly to use 45 acp dies to load 45 long colt? I know I'll need a different shellholder, but other than that would it be possible?

Overkill0084 05-14-2012 06:29 PM

I'm fairly certain that the .45 LC is too long to work properly in .45 acp dies. Whether you could "make it work"? Well, I suspect the results would be unsatisfactory. If nothing else, the .45 LC will need a roll crimp & .45 acp is typically taper crimped. With new Lee Die sets under $40, I don't see the need to force the issue.

JonM 05-14-2012 08:49 PM

no. 45colt is waaaay to long to work in the 45acp dies.

fmj 05-14-2012 09:06 PM

If i am not mistaken, arent 45 colt .458" and 45 acp .451??

I would think this would be another issue to go with the case length issue.

rjd3282 05-14-2012 09:21 PM

Post war 45 colt is .452 pre war is .454. WWII that is. :)

1hole 05-14-2012 11:30 PM

" Is it possibly to use 45 acp dies to load 45 long colt? "

Maybe but I doubt it. The problem will be the sized & expanded diameters, not the length. Don't have my manuals at hand to confirm that tho, you can look it up yourself.

The question of crimps will be how hot you load them, hot loads will need a roll crimp but moderate loads won't care.

Rick1967 05-15-2012 12:14 AM

You could expand and seat. You could even use the taper crimp if you load light. But you can not use the sizing die. The 45 colt is too long. You would only be able to size part of the case. It would be to large down by the rim of the case. It might work the first time. But after that you would have trouble with getting cases stuck in the cylinder. I would invest in the dies if I were you.

hiwall 05-15-2012 01:49 AM

Even though you couldn't fully resize the 45 long colt case it would probably still work work ok for you. Depends if it is for a revolver if all the chambers are about the same size(they are never exactly the same). If it is for a rifle then I doubt you have problems.

Durangokid 05-15-2012 03:31 AM

The S&W 25-5 shoots the .454 LSWC better than anything else. The 25-5 tends to key hole with .451 & .452 bullets. The .454 is to large for the ACP seating die.:)

Sport45 05-15-2012 04:36 AM

The sizing die probably won't be deep enough to let you deprime a .45 Colt case.

I suppose you could put a decapper out of a rifle die in a .45acp die and make it work, but then you might as well just get the proper sizing die.

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