I'm not a fcd hater but I don't use them myself.
I do find statements like these on the silly side.
" I've never had a single auto round experience setback or a single revolver round experience crimp jump. I doubt that every one of the FCD naysayers can say that."
Well neither have I, don't shoot like I used to. Down to 15,000+ rounds a year in several different revolvers/semi-auto's and 6 different calibers. Been doing so since 1985 & have yet to have any bullet movement issues. Don't have any in the rifles I reload for either.
A picture of a lee fcd.
Simple enough, the 2 main components are the crimp ring in the top and the sizing ring in the bottom. I seat & crimp any loads that have a roll crimp in the same stage. I like to seat in 1 stage and taper crimp in another stage. I just happen to use a taper crimp die instead of a fcd.
Why some consider the fcd a crutch?
The real question is how did the reload get so dis-combobulated that it had to be put back in shape/re-sized to be able to work?
Myself I believe lee is correcting a problem that they created with the dies they sell. I don't use or need their fcd nor have I ever used a case gauge.
The bigger picture:
I believe most reloaders don't actually know how to use reloading dies . Nor how to use them correctly. A thread on how to setup reloading dies and how to set them up for a caliber that the reloader has never never reloaded for will show this.
Not picking on anyone, not slinging mud or looking down my nose, not saying bad things about anyone who uses a fcd or case gauges for that matter. If your happy I'm happy!!!
What I will say is that if you know what causes the issues that the fcd has to fix in the 1st place. You won't need a fcd.
A picture of 45acp plinking ammo loaded with nothing more than free range brass to make blammo ammo. Those are .452" bullets with a taper crimp die.
A closeup of some 45acps & 9mm's both were crimped with a taper crimp die. The 45acp's are .452" and the 9mm's are .358".
More 9mm's that are .358" in diameter. The bullet is actually an extremely lllooonnggg hollow based bullet designed and sold in 1900 (160+ years old) that was designed for the 38lc, it's a 150gr hb bullet.
A closeup of that 35870 hb bullet next to 1 of my favorite 9mm bullets a 125gr hp. As you can see both bullets are seated & have the same oal. Both are sized to .358". The difference is the 150gr 35870 bullet is 1/10th inch longer and is seated deeper in the case.
Those 125gr hp's sized to .358" and loaded in free range brass. More blammo ammo for the 9mm
Why all the pictures??? Because everyone can get a good look at the ammo I reload. THe .452 45acp's are loaded for 2 different match chambers & the .358" 9mm's are loaded for 2 different match chambers and a field grade ccw. If you look closely you can see different things. This is what my reloads look like with a 3/1000th's taper crimp on them. The taper crimp is set to taper +/- 30/1000th's of the lip of the case along with removing the bell.
If your reloads don't look like the ones pictured above with only the bell needing removed before you use a fcd. That's called a clue.
I'm using a 1/1000th's oversized bullet in the 45acp and a 3/100th's oversized bullet in the 9mm. I have zero problems with feeding or accuracy in match grade bbl's.
That blammo ammo plinking load using .358" bullets and mixed range brass in a nm 9mm.
The 45acp's will cut the same bugholes.
Nothing more than 38spls blammo ammo loaded with standard dies using .358" bullets and seated/roll crimped in the same stage with nothing more than beat to death free range brass.
Everyone looks at things differently. Myself my reloads look good before I would use a fcd so I see no need to use 1.