I'm not sure about BB, i never went less than 8 reps. I know i could do 8-10 reps with 345 in my prime. It's been 10 years since i really tried heavy lifting.
I believe at my strongest i could do 6-8 reps with the 140's. At a BW of around 250.
Never really liked doing them heavy, made my shoulders hurt.
My strength was always overhead pressing.