That wouldn't help. Chris wants you to weight the 50cal balls you used to out-range 68cal at 280fps. The ones he had from cup won't outdistance 68 at 280, so you must have the much-lauded 'heavier fill' in yours. You know, the crazy-heavy fill that makes the ball heavier than 68cal, and therefore fits within the discipline of physics, allowing it to outrange 68cal...Just weigh that then.............
Now that he has your assurances that your 50cal does actually outrange 68cal (at 280) he just needs to know the weight of the 50cal balls you have there (the heavier fill ones). Once he knows that he can apply physics and no-doubt put 2 & 2 together to discover that GI Milsim were telling the absolute truth all along.
I know it will be a relief to all of us to finally prove once and for all that the GI Milsim crowd are 'not-guilty' of cooking their figures.