The 550 is a great press for handgun bullets, especially 45 acp. I have been doing that on my 550 since 1995.
5 grains of Unique pushing a 230 grain bullet is a great plinking load.
Take your time adjusting the 550. Get it right the first time. Check often as you go to get a "feel" for the press, Soon enough you can tell when a primer hasn't been seated correctly.
The 550 is much more forgiving than the 650 for halting mid cycle and fixing anything that might have gone wrong. The 650 produces much more ammo but takes time to correct when something goes wrong, such as a flipped primer or a bad case in the bunch.
I have a 1" paintbrush and a toothbrush to brush away powder residue from the first station
