Light pull marks are normal. Properly crimped ammo will have light pull marks.
Heavy pull marks could be another story depending on the meaning of "heavy".
I have loaded plated 9mm bullets with pull marks, no problems were encountered. Same with Jacketed.
As a matter of fact I seek them out at the funshow.
Just used up some 124 gr 9mm plated bullets with pull marks, paid $12 for 250 at the funshow.