Some time ago I asked here if the LM would reload .44-40, given the fragility of the cases. General consensus was yes, so I bought all the relevant bits. It took a lot of tweaking but I got it working, although I always had issues of some sort every session. Yesterday I needed to load about 130 cases. After the first 53 I had 3 crushed cases, 1 upside down primer, 2 crushed primers and 11 cases that missed getting a primer. The last issue is because the large pistol primers don't feed from the primer holder unless I shake it vigorously (very vigorously!), they appear to bridge across the opening of the feeder. (Oh, mustn't forget the chipped shellplate that Lee kindly replaced).
So I shifted the dies back to my Lee 4-hole turret press for the remaining cases - result, one crushed case, my fault entirely as I saw a "blemish" on the case but figured the seating would take care of it. Wrong. The rest were perfect.
I had already been decapping/sizing on a different press first, to try and eliminate some issues, so between the time involved in separate decapping and stopping every time I have a problem with the LM I figure that it's quicker overall using the turret press (and less frustrating!). I'll use the LM purely for .38, which it handles with no problems. A bit disappointing, but we live and learn.