Marine Cpl
.577 Tyrannosaur.
For humans? If so, why not a Federal HST that actually expands and penetrates to 16 inches?They don't penetrate nearly as much as hardcast. They are light for caliber and recoil less. They penetrate hard barriers and continue on about the same path. I'm talking about the defenders, not the penetrators.
What benefit will you get from these for defense?