Originally Posted by Flatlander
So only the basic rating is a 1" steel ball dropped from 50 inches, it would appear. This doesn't seem like much energy or momentum at impact to me but I'll crunch the numbers later and compare it with BB's.
Just for everyone's knowledge, didn't see you post it here, but that equals out to (assuming roughly a density of steel to be 7.8-7.9g/cm^3):
Energy upon impact = 6.7 Joules or higher.