For pest control take a 148 HBWC and load it upsidedown on top of 3grs of Unique with a standard pistol primer.Velocity is around 850 fps with no leading and they double in diameter on impact.Bob Milek Border Patrol load from way back.I got pefect mushrooming at 100 yards through one side of a 45 gal steel drum out of a 4" model 10........................Harold