Look it up yourself. Every bullet manufacturer has the data.
Not true. Not a one of them does.
All the manufacturer velocities are tied to specific bullets, which means a specific construction, mass (or range of masses), etc. Which means KE or at least a range of KE is known.
No one says "Irrespective of any other factors, velocity 'X' is enough to ensure a bullet will be effective."
Nobody knows what velocity 'X' is except you.
Please enlighten us.