When I first started drinking, I went hard as I didn't know how much was a lot. Before my freshmen year college, 11 shots of vodka in a couple hours and I was gone for the night.
The most I've taken without blacking out in one night was 17 shots with a mixed drink included (I had someone counting as my boy and I went head to head).
Blacking out I have no idea. People told me 18-20. I think around 20 is a fair amount.
In my 3rd year, I'm way more smart about it and like to just keep it from 8 to 11 shots in like 30 minutes and I'm good for the night. After a few hours, I usually drink more if there is some.