According to UK regulations
If the paintball is lighter then the max velocity can be increased
.68 roughly .32g - 330ft/s
.50 roughly .24g - 380ft/s
I'm wondering how the mass of the .50 calibre paintball was calculated.
The surface area of a .5 to .68 sphere is almost exactly half. If this accounts for the shell and assuming the same material type and thickness, then the shell should weigh roughly half.
The volume of a .5 to .68 sphere is approximately 40%. Again, assuming the same type of fill material, then the weight would be roughly 40% of the .68 fill.
This would mean the .5 ball would weigh somewhere between 40 to 50% of that of a .68 paintball.
24 grams is 75% of the weight of the 32 gram .68 caliber ball. Now I realize this is based on the same material types, which I assume with this new engineering that has supposedly taken place, is not the case.
I assume these balls have been seen by some as they have been tested in disguise thoughout North America, so maybe the 24 grams is an actual measurement.
I am not a mathematician so my math might be wrong (actually I used those handy on-line calculators), so I am wondering if the 24 grams is an actual measurement and not just some guess.