I have been dismantling and weighing various steel loads, plus one BioAmmo load. Their pellets, of that alloy above, are 15% LIGHTER than mild steel, unlike pure Bismuth, which is 15% heavier/ more dense than mild steel. Shot size 5 measured between 3.0 and 3.2mm in diameter.

I have yet to fire any though. We will see. Should be OK at close range.

HB