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Discussion Starter · #1 ·
What die do I need to crimp with , Lee sells a FCD ,Taper Crimp Die and a Carbide Crimp Die all different for a 9mm. Is the FCD a roll crimp? I tried to see what my crimp die in my .45 set is and cant tell which one I have for it.
I have too many options , what do I do?
 

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The info you presented confuses me a little too. :) I have (and use) the LFCD (Lee factory crimp die) which is a taper crimp for semi-auto calibers and a roll crimp for revolver calibers. The difference between the LFCD and the "standard" taper crimp die is that the std. die does not have the carbide ring to post size the completed round. Not sure what they mean by carbide crimp die. :scratch:
 

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Yes it is confusing.

Want more confusion? The Lee FCD for 9mm Luger doesn't have a carbide ring at the bottom.
The entire body has a tapered carbide insert running full length.

Ha! Now we're totally confused. :p



Nearly all modern dies for 9mm Luger are taper crimp, not roll crimp.
I say 'nearly' because a member recently confirmed that RCBS
still provides roll crimp with certain semiauto handgun dies,
but I don't currently recall which dies we were talking about.
It may be 9mm or 45acp. I don't remember.




But OP asked about 9mm Luger crimp dies from Lee.

Talking about 9mm Luger only, Lee offers three different handgun crimp dies.
All are taper crimp, but read below about the separate Taper Crimp die.
The standard seating die has a taper crimp function built into it.
Lee also offers a separate Taper Crimp die, this is an odd animal because
it's a modified crimp die, almost half way between roll and taper crimp. It is
intended to replace roll crimp dies included in their 3 die sets prior to 1986 but can be
used as a standard separate taper crimp die if you don't adjust it too tight.
For 9mm Luger, the FCD is only offered in carbide. There are other FCD available
for other cartridge types, but for 9mm Luger they only offer a carbide FCD.
 

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For 9mm Luger, Lee uses a full length carbide insert
rather than a post-sizing ring at the bottom.

Many semi-auto cartridges are tapered, even the ones
we call 'straight wall' cartridges.

But 9mm Luger is tapered too much for a simple ring at the bottom.
So Lee uses a full length tapered insert in the 9mm Luger FCD.
The insert is carbide, they don't offer a non-carbide FCD for 9mm Luger.
 

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Discussion Starter · #5 ·
So I guess what I am looking for is a Carbide FCD? I think that is what I want, I crimp as a separate step as per the advise of more experienced reloaders.
 

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If you bought the Lee 4 die set for 45 acp, you have the Lee FCD (taper crimp).
 
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