Metal shotgun slugs appear to stay together much better than lead slugs do.
What if a slug was made from titanium? These very interesting experimental shotgun slugs were actually CNC machined by Tim of Tactical G-Code.
This video experiments with metal shotgun slugs of different metals and the results may surprise you.
Lead shotgun slugs are heavier than these other experimental metal projectiles, but deform badly upon impact.
With a whole selection of copper, brass, mild steel and other metal projectiles, this guy had a lot to choose from. The mighty yet expensive titanium metal makes one really tough shotgun slug. It holds up extremely well through testing and certainly could be used more than once as a projectile if recovered after hitting a target.