knocked out 22 a few weeks ago but could possibly hit 30. i try to do at least 3x10 every day along w/3x25 push ups. no matter what im doing; i just love those 2 exercises.
I've done 17 or 18 at a bodyweight of 180. The correct way to do a Pull up is to lower yourself to just before lockout, then pull up and attempt to touch your chest to the bar. If your trying to do as many as you can or more than someone else they may tell you to "lockout" or they won't count them.
Palms away, no straps, strict...I'm thinking I've done 13 at near 290 lbs body weight. For some reason I'm thinking I did a few more once...but 13 also sticks in my head.