These are Lee 200 grain .358 round flat bullets, the one on the right has been swaged in a C4HD swage die.
These ones here were powder coated with HF red a few months ago, then I did a rebake on them to soften them, they are cast of COWW/Indoor range lead 50-50..no idea on brinell but that alloy will heat treat. Then I ran them base first into the swage die.
The noses became the bases and vice versa.
Seems to iron out the grease grooves better running them in base first. No signs of the PC letting go of the bullet at all.
These ones were swaged naked, PC, then reswaged to give them a prettier appearance.