145ea436a8bda4501ad2c81ca39bfd5eb70a5e6f9d41b2d87222e296cc4529fe 147b13913108fc10be6cb38429f57e992e5d79a6f3998b1dfe8ff6. Refine by Grain Weight: 147 150. Refine by Grain Weight: 150 155. Refine by Grain Weight: 155 158. Refine by Grain Weight: 158 165. Refine by Grain Weight: 165 ... Personal Defense HST 9mm Luger +P. P9HST3S. $37.99 Currently Unavailable Grain Weight: 124; Muzzle Velocity: 1200; Bullet Style: HST Jacketed. Testing two different weights of Federal HST 9mm hollow point defensive rounds using the Taurus GX4. Did one perform better ... This is an ammunition test of 2 Federal HST 9mm rounds, the 147 and 124 grain p. The test is being performed out of a Sig.