I load with a single stage Hornady press and have for going on 30 years. I load .223, 30-06, .243 and .327 fed. all one round at a time. I don't load 9mm, 45 ACP cause I can buy it cheaper. I usually do batches of 50 in a three stage process.
1. De-cap and clean.
2. Size, Trim, and Prime.
3. Drop powder and press bullets.
I weigh every powder charge. What I load it used for hunting.
If you want speed, buy a Dillion RL550 or Hornady AP. These are progressive ammo plants.