You don't say what brand of plated bullets and not all are plated to same thickness. So it likely would vary with brand. HPs can be problematic if ya push them too fast, how fast is too fast you'll just have to experiment to find out.
I suspect your velocity is fine with them. If you know the brand check their website. I can't remember which, Berry I think, has two different plating thicknesses for different velocity ranges.
Try them into some kind of expansion media, wet paper, water filled bottles or whatever you have and see how they act and how deeply they penetrate. That should give some idea but only shooting them into flesh will give you a definitive answer.