Reloading question SOLVED THREAD CLOSED

[sofbak]

Came across some old RCBS 45 ACP "roll crimp" die set.....but those were a 50 year old set from the early 70's, probably for the WW 1 and 2 revolvers....But nothing modern would make sense.

A WW1 or WW2 revolver in .45acp???

This doesn't even qual as legit

Well, "historically, yes, but practical (?), not. Moon clips, or "half moon clips" (?).

[NapalmCheese]

"I have never heard of any reloading die maker providing roll crimp dies for cartridges that headspace on the case mouth such as 9mm/40/10/45acp as all of those cases need the belling removed and the case pushed back against the bullet in order to fit into the gun correctly."

Lee factory crimp die does this, all day long. But, if improperly adjusted, it will create a round that is "headspace challenged".

The Lee factory crimp die for .40 S&W (and 10mm) is described by Lee as a taper crimp, not a roll crimp.

[bigbossman]

The Lee factory crimp die for .40 S&W (and 10mm) is described by Lee as a taper crimp, not a roll crimp.

I've been using a Lee seating/crimp die in .45ACP for decades. Taper crimp, all day long.

[sofbak]

The lee seating/crimp die is a totally different tool frm the lee factory crimp die...

Screw the stem out of your Lee FCD, and remove the bushing.

Look at the top end of that bushing. Hopefully any/all of yoy will recognize what you find there.

If not, well I tried.

[Sandspider500]

That's weird.



I wonder if the other die makers have the same thing.

[sofbak]

OMG. I just managed to connect to this godforsaken website, login, and (bonus points) FOUND the quote button! Buckle up buttercups, you're in for a helluva a cyber-ride! First:

That's weird.



I wonder if the other die makers have the same thing.

Thankyou Sandspider500 for digging out that Lee Precision Technical Support Post (LP TSP). That info is not weird. Considering the arrogant, ignorant, and narcissist (AIN) cacophony that has risen here from the tire kicker, nose picker factions of CGN, your posted information is GOLDEN!

First, Mr. Rausch:

"I doubt that's correct.
I have never heard of any reloading die maker providing roll crimp dies for cartridges that headspace on the case mouth such as 9mm/40/10/45acp as all of those cases need the belling removed and the case pushed back against the bullet in order to fit into the gun correctly."

Well, maybe Mr. Rausch, you're not the most well informed, omniscient, gun-guru you consistently purport to be here..... Nobody knows everything about anything-including YOU. (More to follow, so stay tuned).

So after a "rausching" start here, I must address that LP TSP presented above. I do so with a personal dedication to accuracy, completeness, and possibly to present a window toward Absolution for the AIN pukes that pollute these forums. Listen up, and recognize your opportunity to contrition.

The author of that TSP stated that the dual crimp function was resident in the "Bullet Seating Dies". That TSP is dated in Feb of 2011. Either it was an error, or there has been a later design change to Lee Precision Pistol Die Sets (LP PCD).

I purchased my LP PCD Sets in 2012-.40 S&W, .45acp, .45 colt....

"Friends don't let friends use lee dies."

Sorry "randall", but no one prevented me from utilizing LEE Precision products-family, FRIENDS, or CGN posters. And I can confidently state to YOU, that I and many others, through the benefits of natural intelligence, high-quality education, and experience-us Lee Precision "drivers"/CGN members here turn out "Stellar" examples of DIY ammunition. AIN again?

And in all three sets of my 20212 LP PCD sets, that dual crimp function-"taper then roll" was now resident in the Lee Factory Crimp Die (FCD) via the carbide bushing in same. The dimensional relations and function remained the same, the closer the shell holder is to the die, the greater the crimp-taper and then roll.

As for big mouth man, and mr. cheese.....take a good look at your LP PCD sets, or read the above.......maybe you'll learn something. But if not, AIN forevermore.

[sofbak]

I've been using a Lee seating/crimp die in .45ACP for decades. Taper crimp, all day long.

How many decades bmm?

Did you buy your LP PCD set frm Methusala? Or maybe you got a deal from the back of a peddler's mule-drawn wagon, clopping down mainstreet in your "town"?

AIN.... again

[sofbak]

So mr cheese managed to duck and run b4 I could get to his AIN post here ( see bmm quote in post #17)?

Well, ok mr cheese, I alredy knew what you are .

C u round th forums!

[bigbossman]

Drunk posting is not a good look.

[NapalmCheese]

Interesting, when Sofbak doesn't login for a while it's because the website sucks; when I don't login for a while it's a 'duck and run'.

Anyway, I'll just leave this here:
"Lee 40 S&W/10mm Auto Carbide Factory Crimp Die sizes the cartridge while being crimped so every round will positively chamber freely with factory like dependability. This die applies a taper crimp."

Pulled directly from:

https://leeprecision.com/carbide-factory-crimp-die-40sw10mm

on 2025-04-15 @1227 PDT

Or do I need to provide an APA style citation?

Should we start arguing that Lee's own description is potentially ambiguous (taper then roll still means taper)? How about arguing that if Lee was a GOOD reloading company it wouldn't be ambiguous? Or how about arguing that Lee IS a good reloading company and they aren't ambiguously defining their FCD because they are stating exactly what it does and only what it does?

Who wants to start arguing about neck tension and the measurement thereof? Maybe start a new thread about bumping shoulders back on bottleneck cartridges.

[ar15barrels]

Drunk posting is not a good look.

Indeed.

[ar15barrels]

Interesting, when Sofbak doesn't login for a while it's because the website sucks; when I don't login for a while it's a 'duck and run'.

I been on a cruise ship and just too busy to internets…