No powder and do not be embarrassed
My brother has been loading at a low level for 25 years. I got back into it a year ago.
Both of us ran into that, mine were 9mms and his were 30-06.
Had to go back to the basics, charge all the cases with powder, then look at each one before you start putting a bullet in the end of any of them.
Progressives and such with auto powder I will leave to others.
In my case I was trying to be sequential and I got lost (two I think).
I think he found 2 or 3 that he missed.