Most LWC's are designed to upset and take the lands at about 700 +/- fps. I inherited three 500 bullet boxes of Speer WC's at one time. They were made to go bang over a couple of grains of bullseye or red dot. I found that upper end loads tumbled badly, and recovering a couple from very soft wet earth, I noticed that rifling marks were gone on one side of the bullet. The lead was definately still in the barrel.
I suppose you could cast them hard, but the advantage in that case would go to a conventional SWC, i.e. why bother.
I suppose you could cast them hard, but the advantage in that case would go to a conventional SWC, i.e. why bother.