I probably should have been more clear and said "target loads with lead bullets", where the idea is to get recoil down as well as find the accuracy sweet spot.
And, I was also trying to be charitable (to the guys at the range). And provide the OP with some "discussion points" for use in future conversations with those same guys.
But, that said, there are some guys whom you might encounter at ranges who are just COMPELLED to tell you that you are doing something wrong if you are a handloader. I don't spend much time having "discussions" with that type.