Eaglet, Maybe. If the soft jacketed bullet was "tough", then it might stick longer on the target vs a true FMJ. Many of the hunting bullets in jackets aren't made to stick together on steel. Hitting a steel target is like driving your car head on into a wall. Something has to give. If the target starts to fall upon impact, your bullet has a better chance. But if wind if blowing from the back or the target is set wrong and leaning forward, it hesitates and doesn't move immediately. This is the test of your bullet. Sierra's early FMJs were really a jacketed bullet with the lead exposed on the rear and jacket rolled over. Upon impact, the lead would squirt out the back. That is why a "silhouette" FMJ was developed by Sierra where the jacket is more conventional with the cup covering the rear and folded over the nose with just a small spot of lead exposed on the nose area. Much tougher and harder to blow the bullet apart. As you can see, hitting steel is a totally different concept than animals, unless the target is the skull of a grizzly bear and you are trying to penetrate that thick bone. Then your problem besides penetration is using a bullet that does not have the tendency to skid along the bone and not bore through! Here point type,limited expansion, etc. all come into play. Oh well, what fun,experimentation, and research.