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just cleaned out my Lee FCD I use for my 44spl's as it was starting to get a bit gunged up. I marked it before taking it apart so I'd have it close to depth on reassembly, but when I did, and got it back in press, I noticed it wasn't crimping. It needed another 2 full turns to get it to touch.

so I popped it out again and took a look. the ring I saw inside the crimp insert, which I originally assumed was just a wear mark appears to be a slight step. I tried just the ring on some loaded rounds and one end contacts the case straight away, the other end (with the slight mark or possibly taper? slips over a lot further before contacting

any one know which end I should be using? I have been using the non step end

Why use a Factory Crimp Die anyway? The seating die will produce a more than adequate roll crimp and you'll have saved an entire process.....

The 44 factory crimp doesn't work the same way as the rifle version, it gives a roll over crimp.

Why use it? Because I'm using a 4 hole turret so it would just be an empty pull and its easier to set the seating due to only seat

So it gives a roll crimp? Do you know if the other end does a taper crimp? Does anyone have one they can look at to see if the ends are different?