Originally Posted by Sandlapper77
I was mainly wondering how effective a JSP is in a handgun round would be. Does a pistol bullet travel fast enough or have enough energy to expand a JSP?
It all depends. When these ammo companies design a bullet they generally start out with expectations in mind for the finished product. What did Federal have in mind in designing the .355 caliber 95gr JSP??? I have no clue and have yet to see any test results.
Within reason, a bullet manufacturer can pretty much make the bullet do whatever they want it to. They can adjust the hardness of the lead. They can adjust the hollow point cavity or width of the exposed soft point. They can skive serations in the jacket in varying amounts and depths. They can bond or not bond the copper jacket to the lead core. Even the copper jacket material itself can be various alloys of copper, not to mention different jacket thicknesses.
Maybe someone has more info on Federal's intentions for that particular 9mm load and/or how they've seen/heard how it has performed. As for just picking up plinking ammo anyway, well, if your gun(s) feed(s) it reliably, have fun!