Fly, was in basement yesterday, so I grabbed my digital scale and some of those .22 round balls.
Individuals varied from 15 gr to 17 gr.
10 counted out into the scale pan weighed 173 grains for a 17.3 gr average.
I was surprised to see they weighed more than my 14.3 gr CPHP's.
I guess I am middle of the road middle class where it comes to airguns.
I have lots of them in the 150 to 200$ range, couple of cheap ones, and one that sells for 300$.
I doubt I'd ever spend 600$ for an air gun. I just don't take it that serious. Others do, their choice.
No judgement implied or otherwise. Your money, your time, you decide.