those look like swaged bullets to me, not cast. If so probably have a thin layer of wax on them for lube, kind of like you would find on some .22lr ammo.
I bought a bunch of 240grain .44 hornady's a few years ago that were similar. It is soft lead, so i would be aware of higher velocities and leading.
Last edited by RoninPhx; 08/08/15.
