Ruger LCR 38 Special +P ammo test: 158 grain Remington HTP vs 140 grain Underwood Extreme Penetrator

38 Special +P Short Barrel velocity expansion and penetration shooting test: 158 grain Remington HTP vs 140 grain Underwood Extreme Penetrator fired from the Ruger LCR

The 158 gr HTP round expanded to .47" diameter, or just under 32% of initial bullet diameter

The 140 grain Extreme Penetrator's average muzzle velocity of 867 feet per second equates to 234 foot pounds of muzzle energy

The 158 grain HTP's average muzzle velocity of 822 feet per second equates to 237 foot pounds of muzzle energy