This guy turned recovered Federal HST pistol bullets into a Valentine’s Day gift for his girlfriend.
I started out with a box of Federal 9x19mm HST 147gr pistol ammunition. This was a box of 50 rounds purchased at the Gun Bunker in Shrewsbury PA for $35 plus tax. I fired 6 of these cartridges into a 30” tall trash can filled with water. I did this from an elevated firing position, striking the water perfectly perpendicular. I used a Beretta 92FS Inox pistol with a 5” barrel, and a Freedom Armory Machine Works Grenadier 45 suppressor (as to not alarm the neighbors). This caused the hollowpoints to expend nearly perfectly, with nothing to deform them before they were fully decelerated by the water. One of the six did not expand, and was discarded. A firearm with a significantly longer or shorter barrel would have probably affected the expansion. I was about 10 feet above the trash can, but I still managed to get splashed from this.