The only thing I don't like about the 650, is the primer system. If you do not have a case in place, it feeds a primer anyway
The LnL feeds a primer, but if there is no case, it will not feed another; it just leaves the one in place. I don't know how the Dillon primer system works, but I can see that as a small PITA considering that it isn't rare to have a empty spot on the shell plate for one reason or the other. What happens when you first start out and a case hasn't reached the primer?
ETA.. I read about the LNL not being able to use the Lee FCD, is this still the case?
ETA.. How are the 2 on changing caliber? With my single I use a different powder measure so I don't have to change disks, etc. Any warnings on either?
I use the Lee FCD all the time on my LnL, so no problem.
The LnL has a powder measure that uses a rotor where the powder is dumped into the case on the upstroke of the ram and refilled on the downstroke. The volume of powder is adjusted with a stem that screws in and out of the powder space in the rotor. It is infinitely adjustable. Powders that consist of uniform small kernels meter well while irregular and large kernels meter not so well. I use Power Pistol and it meters well. Stick powders have bridging problems. I imagine that any measure that dispenses by volume has the same problem