As a self defense load testing shows it to be fine. It is not designed to replace military rounds or even rounds for the police S.W.A.T. It will not reliably penetrate car doors or put engines out of commission. HOWEVER the rotation forces creating severe damage in soft tissue through cavitation is very real. It remains online through jean material and heavy coats. No hollow point to plug up and no unreliable soft point expansion to deal with. It is a self defense load and should be used as such though hogs and deer have been taken down quickly and effectively with it. Managebale recoil for ALL shooters is a plus. Feeding is reliable as any round nose in an auto and much more reliable than wadcutters in a revolver. Though it reduces weight even more in my J-frame airweight followup shots are quicker with less effort need to align sights. This ammo is for up close and personal protection and not an all around target, hunting SD round. It just needs some true understanding of the physics of how it works. If you are shooting through car doors or into cars you may want to rethink owning a gun or be carrying a badge as the courts are going to look VERY dis-favorable upon you without some extreme circumstances associated with doing so. P.S. you can find non SD loads that are cheap to practice with using the nonfluted bullet.