Any tactical situation is a challenge and every bullet is a compromise. The 4 + Gel Block is the FBI Standard for point displacement against a attacker, and as such is a good comparison for 90% of the shooting incidents you may encounter as a Non LEO or Military.
But for their purposes, other things have to be measured. Barrier penetration Plus displacement of energy into a body is critical for LEO work. (Which is why the Speer 125 is so popular with LEO for the 357 SIG)
I believe in a 12 to 15 inch penetration Ala the the FBI test standard, and want at least 400 LB of energy. I also believe in the Speer 125 Golden Saber for the SIG 357, and the Remington Golden Saber for the .40 S&W. The Remington S&W round also has the nice advantage of a 100% expansion. (It goes from .40 to .80 Caliber).
Remember. The bigger the hole, the faster your target will bleed out and stop moving.
Big Ugly lead objects (Like the .58 Caliber lead bullet of the Civil war) put the top to most people.
But for their purposes, other things have to be measured. Barrier penetration Plus displacement of energy into a body is critical for LEO work. (Which is why the Speer 125 is so popular with LEO for the 357 SIG)
I believe in a 12 to 15 inch penetration Ala the the FBI test standard, and want at least 400 LB of energy. I also believe in the Speer 125 Golden Saber for the SIG 357, and the Remington Golden Saber for the .40 S&W. The Remington S&W round also has the nice advantage of a 100% expansion. (It goes from .40 to .80 Caliber).
Remember. The bigger the hole, the faster your target will bleed out and stop moving.
Big Ugly lead objects (Like the .58 Caliber lead bullet of the Civil war) put the top to most people.