Anyone on here ever reload 5.7x28mm rounds?

Haven't yet but probably soon will. One thing I do not expect very good case life, at least from my PS90. The shoulders get moved forward about .05 inches each time they are fired so will work the brass more resizing them

Do some research before starting. There's a good video on youtube that details the different steps. Apparently the 5.7 has a special coating on the case that is required for correct firearm operation. If this coating is removed during reloading, you'll get failures.

i heard its very tough to reload that round accurately... Any truth to that?

It's one of the toughest rounds to load for because of how far the shoulder blows forward, the coatings on the cases, and the FiveseveN can fire out of battery which leads to a catastrophic disassembly.

Just make sure your shoulder setback is within spec and you can figure it out from there. HS-6 makes a decent powder for it. Stay in the 40gr bullet weight.