LCT and dies, I started with this round and .223, it really is not as bad some have said. I use AA#9, but do not have issues with setback even without it, never have.
Just be attentive to how you set up your dies and you will be fine. Make several dummy rounds before you start loading to check everything. I shoot Berry's plated for my plinking ammo in mid range velocities without any problems. My SD ammo is factory, mostly because I read about manufacturers using an adhesive to eliminate any setback problems so if a round gets cycled multiple times I do not have to think about it. Is this true, I have no idea but the lenghts do not change, I know because I checked.
I can cycle my rounds half a dozen times and see virtually no variation in length so I could probably carry them without any concern.
Have fun with it, it is a fun round, shoots flat, real snappy, a lot of fun at the range.